Home / 91,983.78-126,934.02-56,233.62

Finding the Fourth Proportional to 91,983.78, 126,934.02 and 56,233.62

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Solution

The fourth proportional to 91,983.78, 126,934.02 and 56,233.62 is: 77,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,983.78 : 126,934.02 = 56,233.62 : x
  2. Step 2: Convert to fraction form
    91,983.78/126,934.02 = 56,233.62/x
  3. Step 3: Cross multiply
    91,983.78x = 126,934.02 × 56,233.62
  4. Step 4: Simplify right side
    91,983.78x = 7,137,959,445.75
  5. Step 5: Solve for x
    x = 7,137,959,445.75/91,983.78
  6. Step 6: Final answer
    x = 77,600.20

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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.