Home / 90,957.48-136,370.52-38,338.20

Finding the Fourth Proportional to 90,957.48, 136,370.52 and 38,338.20

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Solution

The fourth proportional to 90,957.48, 136,370.52 and 38,338.20 is: 57,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,957.48 : 136,370.52 = 38,338.20 : x
  2. Step 2: Convert to fraction form
    90,957.48/136,370.52 = 38,338.20/x
  3. Step 3: Cross multiply
    90,957.48x = 136,370.52 × 38,338.20
  4. Step 4: Simplify right side
    90,957.48x = 5,228,200,269.86
  5. Step 5: Solve for x
    x = 5,228,200,269.86/90,957.48
  6. Step 6: Final answer
    x = 57,479.61

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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.