Home / 91,310.95-126,044.13-81,733.92

Finding the Fourth Proportional to 91,310.95, 126,044.13 and 81,733.92

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Solution

The fourth proportional to 91,310.95, 126,044.13 and 81,733.92 is: 112,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,310.95 : 126,044.13 = 81,733.92 : x
  2. Step 2: Convert to fraction form
    91,310.95/126,044.13 = 81,733.92/x
  3. Step 3: Cross multiply
    91,310.95x = 126,044.13 × 81,733.92
  4. Step 4: Simplify right side
    91,310.95x = 10,302,080,837.89
  5. Step 5: Solve for x
    x = 10,302,080,837.89/91,310.95
  6. Step 6: Final answer
    x = 112,824.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.