Home / 90,318.72-124,646.40-54,517.44

Finding the Fourth Proportional to 90,318.72, 124,646.40 and 54,517.44

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Solution

The fourth proportional to 90,318.72, 124,646.40 and 54,517.44 is: 75,238.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,318.72 : 124,646.40 = 54,517.44 : x
  2. Step 2: Convert to fraction form
    90,318.72/124,646.40 = 54,517.44/x
  3. Step 3: Cross multiply
    90,318.72x = 124,646.40 × 54,517.44
  4. Step 4: Simplify right side
    90,318.72x = 6,795,402,633.22
  5. Step 5: Solve for x
    x = 6,795,402,633.22/90,318.72
  6. Step 6: Final answer
    x = 75,238.03

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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.