Home / 84,017.15-125,729.56-52,442.03

Finding the Fourth Proportional to 84,017.15, 125,729.56 and 52,442.03

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Solution

The fourth proportional to 84,017.15, 125,729.56 and 52,442.03 is: 78,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,017.15 : 125,729.56 = 52,442.03 : x
  2. Step 2: Convert to fraction form
    84,017.15/125,729.56 = 52,442.03/x
  3. Step 3: Cross multiply
    84,017.15x = 125,729.56 × 52,442.03
  4. Step 4: Simplify right side
    84,017.15x = 6,593,513,737.28
  5. Step 5: Solve for x
    x = 6,593,513,737.28/84,017.15
  6. Step 6: Final answer
    x = 78,478.19

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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.