Home / 86,658.09-129,960.68-36,737.25

Finding the Fourth Proportional to 86,658.09, 129,960.68 and 36,737.25

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Solution

The fourth proportional to 86,658.09, 129,960.68 and 36,737.25 is: 55,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,658.09 : 129,960.68 = 36,737.25 : x
  2. Step 2: Convert to fraction form
    86,658.09/129,960.68 = 36,737.25/x
  3. Step 3: Cross multiply
    86,658.09x = 129,960.68 × 36,737.25
  4. Step 4: Simplify right side
    86,658.09x = 4,774,397,807.64
  5. Step 5: Solve for x
    x = 4,774,397,807.64/86,658.09
  6. Step 6: Final answer
    x = 55,094.66

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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.