Home / 99,715.49-149,659.52-52,363.90

Finding the Fourth Proportional to 99,715.49, 149,659.52 and 52,363.90

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Solution

The fourth proportional to 99,715.49, 149,659.52 and 52,363.90 is: 78,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.49 : 149,659.52 = 52,363.90 : x
  2. Step 2: Convert to fraction form
    99,715.49/149,659.52 = 52,363.90/x
  3. Step 3: Cross multiply
    99,715.49x = 149,659.52 × 52,363.90
  4. Step 4: Simplify right side
    99,715.49x = 7,836,756,064.58
  5. Step 5: Solve for x
    x = 7,836,756,064.58/99,715.49
  6. Step 6: Final answer
    x = 78,591.16

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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.