Home / 47,712.40-71,568.60-42,463.60

Finding the Fourth Proportional to 47,712.40, 71,568.60 and 42,463.60

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Solution

The fourth proportional to 47,712.40, 71,568.60 and 42,463.60 is: 63,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.40 : 71,568.60 = 42,463.60 : x
  2. Step 2: Convert to fraction form
    47,712.40/71,568.60 = 42,463.60/x
  3. Step 3: Cross multiply
    47,712.40x = 71,568.60 × 42,463.60
  4. Step 4: Simplify right side
    47,712.40x = 3,039,060,402.96
  5. Step 5: Solve for x
    x = 3,039,060,402.96/47,712.40
  6. Step 6: Final answer
    x = 63,695.40

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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.