Home / 42,059.66-63,079.79-12,470.36

Finding the Fourth Proportional to 42,059.66, 63,079.79 and 12,470.36

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Solution

The fourth proportional to 42,059.66, 63,079.79 and 12,470.36 is: 18,702.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,059.66 : 63,079.79 = 12,470.36 : x
  2. Step 2: Convert to fraction form
    42,059.66/63,079.79 = 12,470.36/x
  3. Step 3: Cross multiply
    42,059.66x = 63,079.79 × 12,470.36
  4. Step 4: Simplify right side
    42,059.66x = 786,627,312.27
  5. Step 5: Solve for x
    x = 786,627,312.27/42,059.66
  6. Step 6: Final answer
    x = 18,702.66

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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.