Home / 84,058.68-125,947.89-69,111.90

Finding the Fourth Proportional to 84,058.68, 125,947.89 and 69,111.90

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Solution

The fourth proportional to 84,058.68, 125,947.89 and 69,111.90 is: 103,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,058.68 : 125,947.89 = 69,111.90 : x
  2. Step 2: Convert to fraction form
    84,058.68/125,947.89 = 69,111.90/x
  3. Step 3: Cross multiply
    84,058.68x = 125,947.89 × 69,111.90
  4. Step 4: Simplify right side
    84,058.68x = 8,704,497,978.89
  5. Step 5: Solve for x
    x = 8,704,497,978.89/84,058.68
  6. Step 6: Final answer
    x = 103,552.64

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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.