Home / 47,551.28-65,641.96-31,428.30

Finding the Fourth Proportional to 47,551.28, 65,641.96 and 31,428.30

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Solution

The fourth proportional to 47,551.28, 65,641.96 and 31,428.30 is: 43,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,551.28 : 65,641.96 = 31,428.30 : x
  2. Step 2: Convert to fraction form
    47,551.28/65,641.96 = 31,428.30/x
  3. Step 3: Cross multiply
    47,551.28x = 65,641.96 × 31,428.30
  4. Step 4: Simplify right side
    47,551.28x = 2,063,015,211.47
  5. Step 5: Solve for x
    x = 2,063,015,211.47/47,551.28
  6. Step 6: Final answer
    x = 43,385.06

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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.