Home / 90,491.02-124,871.97-54,659.86

Finding the Fourth Proportional to 90,491.02, 124,871.97 and 54,659.86

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Solution

The fourth proportional to 90,491.02, 124,871.97 and 54,659.86 is: 75,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,491.02 : 124,871.97 = 54,659.86 : x
  2. Step 2: Convert to fraction form
    90,491.02/124,871.97 = 54,659.86/x
  3. Step 3: Cross multiply
    90,491.02x = 124,871.97 × 54,659.86
  4. Step 4: Simplify right side
    90,491.02x = 6,825,484,398.12
  5. Step 5: Solve for x
    x = 6,825,484,398.12/90,491.02
  6. Step 6: Final answer
    x = 75,427.20

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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.