Home / 89,387.20-134,041.20-30,206.80

Finding the Fourth Proportional to 89,387.20, 134,041.20 and 30,206.80

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Solution

The fourth proportional to 89,387.20, 134,041.20 and 30,206.80 is: 45,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,387.20 : 134,041.20 = 30,206.80 : x
  2. Step 2: Convert to fraction form
    89,387.20/134,041.20 = 30,206.80/x
  3. Step 3: Cross multiply
    89,387.20x = 134,041.20 × 30,206.80
  4. Step 4: Simplify right side
    89,387.20x = 4,048,955,720.16
  5. Step 5: Solve for x
    x = 4,048,955,720.16/89,387.20
  6. Step 6: Final answer
    x = 45,296.82

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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.