Home / 42,646.21-63,836.19-31,414.21

Finding the Fourth Proportional to 42,646.21, 63,836.19 and 31,414.21

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Solution

The fourth proportional to 42,646.21, 63,836.19 and 31,414.21 is: 47,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,646.21 : 63,836.19 = 31,414.21 : x
  2. Step 2: Convert to fraction form
    42,646.21/63,836.19 = 31,414.21/x
  3. Step 3: Cross multiply
    42,646.21x = 63,836.19 × 31,414.21
  4. Step 4: Simplify right side
    42,646.21x = 2,005,363,159.08
  5. Step 5: Solve for x
    x = 2,005,363,159.08/42,646.21
  6. Step 6: Final answer
    x = 47,023.25

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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.