Home / 90,171.96-124,423.02-58,342.20

Finding the Fourth Proportional to 90,171.96, 124,423.02 and 58,342.20

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Solution

The fourth proportional to 90,171.96, 124,423.02 and 58,342.20 is: 80,502.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,171.96 : 124,423.02 = 58,342.20 : x
  2. Step 2: Convert to fraction form
    90,171.96/124,423.02 = 58,342.20/x
  3. Step 3: Cross multiply
    90,171.96x = 124,423.02 × 58,342.20
  4. Step 4: Simplify right side
    90,171.96x = 7,259,112,717.44
  5. Step 5: Solve for x
    x = 7,259,112,717.44/90,171.96
  6. Step 6: Final answer
    x = 80,502.99

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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.