Home / 91,155.14-136,549.55-45,424.90

Finding the Fourth Proportional to 91,155.14, 136,549.55 and 45,424.90

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Solution

The fourth proportional to 91,155.14, 136,549.55 and 45,424.90 is: 68,046.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,155.14 : 136,549.55 = 45,424.90 : x
  2. Step 2: Convert to fraction form
    91,155.14/136,549.55 = 45,424.90/x
  3. Step 3: Cross multiply
    91,155.14x = 136,549.55 × 45,424.90
  4. Step 4: Simplify right side
    91,155.14x = 6,202,749,425.98
  5. Step 5: Solve for x
    x = 6,202,749,425.98/91,155.14
  6. Step 6: Final answer
    x = 68,046.08

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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.