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Finding the Fourth Proportional to 94,305.60, 129,914.40 and 65,966.40

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Solution

The fourth proportional to 94,305.60, 129,914.40 and 65,966.40 is: 90,874.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,305.60 : 129,914.40 = 65,966.40 : x
  2. Step 2: Convert to fraction form
    94,305.60/129,914.40 = 65,966.40/x
  3. Step 3: Cross multiply
    94,305.60x = 129,914.40 × 65,966.40
  4. Step 4: Simplify right side
    94,305.60x = 8,569,985,276.16
  5. Step 5: Solve for x
    x = 8,569,985,276.16/94,305.60
  6. Step 6: Final answer
    x = 90,874.62

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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.