Home / 91,098.61-136,604.18-51,645.13

Finding the Fourth Proportional to 91,098.61, 136,604.18 and 51,645.13

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Solution

The fourth proportional to 91,098.61, 136,604.18 and 51,645.13 is: 77,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,098.61 : 136,604.18 = 51,645.13 : x
  2. Step 2: Convert to fraction form
    91,098.61/136,604.18 = 51,645.13/x
  3. Step 3: Cross multiply
    91,098.61x = 136,604.18 × 51,645.13
  4. Step 4: Simplify right side
    91,098.61x = 7,054,940,376.42
  5. Step 5: Solve for x
    x = 7,054,940,376.42/91,098.61
  6. Step 6: Final answer
    x = 77,442.90

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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.