Home / 48,129.48-66,390.84-28,996.20

Finding the Fourth Proportional to 48,129.48, 66,390.84 and 28,996.20

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Solution

The fourth proportional to 48,129.48, 66,390.84 and 28,996.20 is: 39,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,129.48 : 66,390.84 = 28,996.20 : x
  2. Step 2: Convert to fraction form
    48,129.48/66,390.84 = 28,996.20/x
  3. Step 3: Cross multiply
    48,129.48x = 66,390.84 × 28,996.20
  4. Step 4: Simplify right side
    48,129.48x = 1,925,082,074.81
  5. Step 5: Solve for x
    x = 1,925,082,074.81/48,129.48
  6. Step 6: Final answer
    x = 39,997.98

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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.