Home / 42,460.08-63,761.40-31,930.08

Finding the Fourth Proportional to 42,460.08, 63,761.40 and 31,930.08

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Solution

The fourth proportional to 42,460.08, 63,761.40 and 31,930.08 is: 47,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,460.08 : 63,761.40 = 31,930.08 : x
  2. Step 2: Convert to fraction form
    42,460.08/63,761.40 = 31,930.08/x
  3. Step 3: Cross multiply
    42,460.08x = 63,761.40 × 31,930.08
  4. Step 4: Simplify right side
    42,460.08x = 2,035,906,602.91
  5. Step 5: Solve for x
    x = 2,035,906,602.91/42,460.08
  6. Step 6: Final answer
    x = 47,948.72

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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.