Home / 78,373.17-108,154.94-42,563.19

Finding the Fourth Proportional to 78,373.17, 108,154.94 and 42,563.19

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Solution

The fourth proportional to 78,373.17, 108,154.94 and 42,563.19 is: 58,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,373.17 : 108,154.94 = 42,563.19 : x
  2. Step 2: Convert to fraction form
    78,373.17/108,154.94 = 42,563.19/x
  3. Step 3: Cross multiply
    78,373.17x = 108,154.94 × 42,563.19
  4. Step 4: Simplify right side
    78,373.17x = 4,603,419,260.66
  5. Step 5: Solve for x
    x = 4,603,419,260.66/78,373.17
  6. Step 6: Final answer
    x = 58,737.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.