Home / 90,301.60-124,617.12-54,484.72

Finding the Fourth Proportional to 90,301.60, 124,617.12 and 54,484.72

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Solution

The fourth proportional to 90,301.60, 124,617.12 and 54,484.72 is: 75,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,301.60 : 124,617.12 = 54,484.72 : x
  2. Step 2: Convert to fraction form
    90,301.60/124,617.12 = 54,484.72/x
  3. Step 3: Cross multiply
    90,301.60x = 124,617.12 × 54,484.72
  4. Step 4: Simplify right side
    90,301.60x = 6,789,728,374.55
  5. Step 5: Solve for x
    x = 6,789,728,374.55/90,301.60
  6. Step 6: Final answer
    x = 75,189.46

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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.