Home / 83,726.08-125,578.32-69,773.20

Finding the Fourth Proportional to 83,726.08, 125,578.32 and 69,773.20

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Solution

The fourth proportional to 83,726.08, 125,578.32 and 69,773.20 is: 104,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,726.08 : 125,578.32 = 69,773.20 : x
  2. Step 2: Convert to fraction form
    83,726.08/125,578.32 = 69,773.20/x
  3. Step 3: Cross multiply
    83,726.08x = 125,578.32 × 69,773.20
  4. Step 4: Simplify right side
    83,726.08x = 8,762,001,237.02
  5. Step 5: Solve for x
    x = 8,762,001,237.02/83,726.08
  6. Step 6: Final answer
    x = 104,650.80

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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.