Home / 84,080.43-126,117-20,899.22

Finding the Fourth Proportional to 84,080.43, 126,117 and 20,899.22

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Solution

The fourth proportional to 84,080.43, 126,117 and 20,899.22 is: 31,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,080.43 : 126,117 = 20,899.22 : x
  2. Step 2: Convert to fraction form
    84,080.43/126,117 = 20,899.22/x
  3. Step 3: Cross multiply
    84,080.43x = 126,117 × 20,899.22
  4. Step 4: Simplify right side
    84,080.43x = 2,635,746,298.16
  5. Step 5: Solve for x
    x = 2,635,746,298.16/84,080.43
  6. Step 6: Final answer
    x = 31,347.92

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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.