Home / 61,231.43-84,503.15-40,778.42

Finding the Fourth Proportional to 61,231.43, 84,503.15 and 40,778.42

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Solution

The fourth proportional to 61,231.43, 84,503.15 and 40,778.42 is: 56,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,231.43 : 84,503.15 = 40,778.42 : x
  2. Step 2: Convert to fraction form
    61,231.43/84,503.15 = 40,778.42/x
  3. Step 3: Cross multiply
    61,231.43x = 84,503.15 × 40,778.42
  4. Step 4: Simplify right side
    61,231.43x = 3,445,904,785.42
  5. Step 5: Solve for x
    x = 3,445,904,785.42/61,231.43
  6. Step 6: Final answer
    x = 56,276.74

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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.