Home / 90,216.18-124,509.96-54,425.52

Finding the Fourth Proportional to 90,216.18, 124,509.96 and 54,425.52

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Solution

The fourth proportional to 90,216.18, 124,509.96 and 54,425.52 is: 75,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,216.18 : 124,509.96 = 54,425.52 : x
  2. Step 2: Convert to fraction form
    90,216.18/124,509.96 = 54,425.52/x
  3. Step 3: Cross multiply
    90,216.18x = 124,509.96 × 54,425.52
  4. Step 4: Simplify right side
    90,216.18x = 6,776,519,318.18
  5. Step 5: Solve for x
    x = 6,776,519,318.18/90,216.18
  6. Step 6: Final answer
    x = 75,114.23

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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.