Home / 90,913.47-136,391.67-28,583.97

Finding the Fourth Proportional to 90,913.47, 136,391.67 and 28,583.97

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Solution

The fourth proportional to 90,913.47, 136,391.67 and 28,583.97 is: 42,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,913.47 : 136,391.67 = 28,583.97 : x
  2. Step 2: Convert to fraction form
    90,913.47/136,391.67 = 28,583.97/x
  3. Step 3: Cross multiply
    90,913.47x = 136,391.67 × 28,583.97
  4. Step 4: Simplify right side
    90,913.47x = 3,898,615,403.53
  5. Step 5: Solve for x
    x = 3,898,615,403.53/90,913.47
  6. Step 6: Final answer
    x = 42,882.70

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1.5x scale

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.