Home / 66,280.74-91,341.45-47,385.06

Finding the Fourth Proportional to 66,280.74, 91,341.45 and 47,385.06

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Solution

The fourth proportional to 66,280.74, 91,341.45 and 47,385.06 is: 65,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,280.74 : 91,341.45 = 47,385.06 : x
  2. Step 2: Convert to fraction form
    66,280.74/91,341.45 = 47,385.06/x
  3. Step 3: Cross multiply
    66,280.74x = 91,341.45 × 47,385.06
  4. Step 4: Simplify right side
    66,280.74x = 4,328,220,088.74
  5. Step 5: Solve for x
    x = 4,328,220,088.74/66,280.74
  6. Step 6: Final answer
    x = 65,301.32

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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.