Home / 90,658.50-136,002.32-38,083.02

Finding the Fourth Proportional to 90,658.50, 136,002.32 and 38,083.02

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Solution

The fourth proportional to 90,658.50, 136,002.32 and 38,083.02 is: 57,130.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658.50 : 136,002.32 = 38,083.02 : x
  2. Step 2: Convert to fraction form
    90,658.50/136,002.32 = 38,083.02/x
  3. Step 3: Cross multiply
    90,658.50x = 136,002.32 × 38,083.02
  4. Step 4: Simplify right side
    90,658.50x = 5,179,379,072.61
  5. Step 5: Solve for x
    x = 5,179,379,072.61/90,658.50
  6. Step 6: Final answer
    x = 57,130.65

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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.