Home / 90,131.13-135,088.97-42,034.95

Finding the Fourth Proportional to 90,131.13, 135,088.97 and 42,034.95

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Solution

The fourth proportional to 90,131.13, 135,088.97 and 42,034.95 is: 63,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,131.13 : 135,088.97 = 42,034.95 : x
  2. Step 2: Convert to fraction form
    90,131.13/135,088.97 = 42,034.95/x
  3. Step 3: Cross multiply
    90,131.13x = 135,088.97 × 42,034.95
  4. Step 4: Simplify right side
    90,131.13x = 5,678,457,889.33
  5. Step 5: Solve for x
    x = 5,678,457,889.33/90,131.13
  6. Step 6: Final answer
    x = 63,002.18

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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.