Home / 90,913.16-136,391.22-28,583.66

Finding the Fourth Proportional to 90,913.16, 136,391.22 and 28,583.66

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Solution

The fourth proportional to 90,913.16, 136,391.22 and 28,583.66 is: 42,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.16 : 136,391.22 = 28,583.66 : x
  2. Step 2: Convert to fraction form
    90,913.16/136,391.22 = 28,583.66/x
  3. Step 3: Cross multiply
    90,913.16x = 136,391.22 × 28,583.66
  4. Step 4: Simplify right side
    90,913.16x = 3,898,560,259.47
  5. Step 5: Solve for x
    x = 3,898,560,259.47/90,913.16
  6. Step 6: Final answer
    x = 42,882.24

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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.