Home / 90,260.19-124,520.49-54,429.84

Finding the Fourth Proportional to 90,260.19, 124,520.49 and 54,429.84

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Solution

The fourth proportional to 90,260.19, 124,520.49 and 54,429.84 is: 75,089.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,260.19 : 124,520.49 = 54,429.84 : x
  2. Step 2: Convert to fraction form
    90,260.19/124,520.49 = 54,429.84/x
  3. Step 3: Cross multiply
    90,260.19x = 124,520.49 × 54,429.84
  4. Step 4: Simplify right side
    90,260.19x = 6,777,630,347.42
  5. Step 5: Solve for x
    x = 6,777,630,347.42/90,260.19
  6. Step 6: Final answer
    x = 75,089.92

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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.