Home / 48,460.15-66,865.20-28,313.13

Finding the Fourth Proportional to 48,460.15, 66,865.20 and 28,313.13

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Solution

The fourth proportional to 48,460.15, 66,865.20 and 28,313.13 is: 39,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,460.15 : 66,865.20 = 28,313.13 : x
  2. Step 2: Convert to fraction form
    48,460.15/66,865.20 = 28,313.13/x
  3. Step 3: Cross multiply
    48,460.15x = 66,865.20 × 28,313.13
  4. Step 4: Simplify right side
    48,460.15x = 1,893,163,100.08
  5. Step 5: Solve for x
    x = 1,893,163,100.08/48,460.15
  6. Step 6: Final answer
    x = 39,066.39

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Double scale
Find fourth proportional to 48,461.15, 66,866.58 and 28,314.13
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.