Home / 84,170.16-126,177.48-31,614.12

Finding the Fourth Proportional to 84,170.16, 126,177.48 and 31,614.12

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Solution

The fourth proportional to 84,170.16, 126,177.48 and 31,614.12 is: 47,391.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,170.16 : 126,177.48 = 31,614.12 : x
  2. Step 2: Convert to fraction form
    84,170.16/126,177.48 = 31,614.12/x
  3. Step 3: Cross multiply
    84,170.16x = 126,177.48 × 31,614.12
  4. Step 4: Simplify right side
    84,170.16x = 3,988,989,994.02
  5. Step 5: Solve for x
    x = 3,988,989,994.02/84,170.16
  6. Step 6: Final answer
    x = 47,391.97

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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.