Home / 90,218.93-124,513.76-54,428.27

Finding the Fourth Proportional to 90,218.93, 124,513.76 and 54,428.27

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Solution

The fourth proportional to 90,218.93, 124,513.76 and 54,428.27 is: 75,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,218.93 : 124,513.76 = 54,428.27 : x
  2. Step 2: Convert to fraction form
    90,218.93/124,513.76 = 54,428.27/x
  3. Step 3: Cross multiply
    90,218.93x = 124,513.76 × 54,428.27
  4. Step 4: Simplify right side
    90,218.93x = 6,777,068,275.85
  5. Step 5: Solve for x
    x = 6,777,068,275.85/90,218.93
  6. Step 6: Final answer
    x = 75,118.03

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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.