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Finding the Fourth Proportional to 60,541.20, 90,714.60 and 39,740.40

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Solution

The fourth proportional to 60,541.20, 90,714.60 and 39,740.40 is: 59,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,541.20 : 90,714.60 = 39,740.40 : x
  2. Step 2: Convert to fraction form
    60,541.20/90,714.60 = 39,740.40/x
  3. Step 3: Cross multiply
    60,541.20x = 90,714.60 × 39,740.40
  4. Step 4: Simplify right side
    60,541.20x = 3,605,034,489.84
  5. Step 5: Solve for x
    x = 3,605,034,489.84/60,541.20
  6. Step 6: Final answer
    x = 59,546.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.