Home / 84,543.42-126,836.19-25,380.18

Finding the Fourth Proportional to 84,543.42, 126,836.19 and 25,380.18

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Solution

The fourth proportional to 84,543.42, 126,836.19 and 25,380.18 is: 38,076.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,543.42 : 126,836.19 = 25,380.18 : x
  2. Step 2: Convert to fraction form
    84,543.42/126,836.19 = 25,380.18/x
  3. Step 3: Cross multiply
    84,543.42x = 126,836.19 × 25,380.18
  4. Step 4: Simplify right side
    84,543.42x = 3,219,125,332.71
  5. Step 5: Solve for x
    x = 3,219,125,332.71/84,543.42
  6. Step 6: Final answer
    x = 38,076.59

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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.