Home / 89,381.20-134,032.20-30,200.80

Finding the Fourth Proportional to 89,381.20, 134,032.20 and 30,200.80

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Solution

The fourth proportional to 89,381.20, 134,032.20 and 30,200.80 is: 45,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,381.20 : 134,032.20 = 30,200.80 : x
  2. Step 2: Convert to fraction form
    89,381.20/134,032.20 = 30,200.80/x
  3. Step 3: Cross multiply
    89,381.20x = 134,032.20 × 30,200.80
  4. Step 4: Simplify right side
    89,381.20x = 4,047,879,665.76
  5. Step 5: Solve for x
    x = 4,047,879,665.76/89,381.20
  6. Step 6: Final answer
    x = 45,287.82

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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.