Home / 42,422.64-63,207.66-40,038

Finding the Fourth Proportional to 42,422.64, 63,207.66 and 40,038

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Solution

The fourth proportional to 42,422.64, 63,207.66 and 40,038 is: 59,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,422.64 : 63,207.66 = 40,038 : x
  2. Step 2: Convert to fraction form
    42,422.64/63,207.66 = 40,038/x
  3. Step 3: Cross multiply
    42,422.64x = 63,207.66 × 40,038
  4. Step 4: Simplify right side
    42,422.64x = 2,530,708,291.08
  5. Step 5: Solve for x
    x = 2,530,708,291.08/42,422.64
  6. Step 6: Final answer
    x = 59,654.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.