Home / 67,644.64-93,350.10-40,781.80

Finding the Fourth Proportional to 67,644.64, 93,350.10 and 40,781.80

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Solution

The fourth proportional to 67,644.64, 93,350.10 and 40,781.80 is: 56,279.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,644.64 : 93,350.10 = 40,781.80 : x
  2. Step 2: Convert to fraction form
    67,644.64/93,350.10 = 40,781.80/x
  3. Step 3: Cross multiply
    67,644.64x = 93,350.10 × 40,781.80
  4. Step 4: Simplify right side
    67,644.64x = 3,806,985,108.18
  5. Step 5: Solve for x
    x = 3,806,985,108.18/67,644.64
  6. Step 6: Final answer
    x = 56,279.18

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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.