Home / 90,240.58-124,246.68-79,477.84

Finding the Fourth Proportional to 90,240.58, 124,246.68 and 79,477.84

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Solution

The fourth proportional to 90,240.58, 124,246.68 and 79,477.84 is: 109,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,240.58 : 124,246.68 = 79,477.84 : x
  2. Step 2: Convert to fraction form
    90,240.58/124,246.68 = 79,477.84/x
  3. Step 3: Cross multiply
    90,240.58x = 124,246.68 × 79,477.84
  4. Step 4: Simplify right side
    90,240.58x = 9,874,857,753.57
  5. Step 5: Solve for x
    x = 9,874,857,753.57/90,240.58
  6. Step 6: Final answer
    x = 109,428.13

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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.