Home / 45,129.32-67,702.36-15,140.68

Finding the Fourth Proportional to 45,129.32, 67,702.36 and 15,140.68

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Solution

The fourth proportional to 45,129.32, 67,702.36 and 15,140.68 is: 22,713.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129.32 : 67,702.36 = 15,140.68 : x
  2. Step 2: Convert to fraction form
    45,129.32/67,702.36 = 15,140.68/x
  3. Step 3: Cross multiply
    45,129.32x = 67,702.36 × 15,140.68
  4. Step 4: Simplify right side
    45,129.32x = 1,025,059,768.00
  5. Step 5: Solve for x
    x = 1,025,059,768.00/45,129.32
  6. Step 6: Final answer
    x = 22,713.83

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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.