Home / 90,856.54-136,306.68-38,281.06

Finding the Fourth Proportional to 90,856.54, 136,306.68 and 38,281.06

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Solution

The fourth proportional to 90,856.54, 136,306.68 and 38,281.06 is: 57,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,856.54 : 136,306.68 = 38,281.06 : x
  2. Step 2: Convert to fraction form
    90,856.54/136,306.68 = 38,281.06/x
  3. Step 3: Cross multiply
    90,856.54x = 136,306.68 × 38,281.06
  4. Step 4: Simplify right side
    90,856.54x = 5,217,964,195.48
  5. Step 5: Solve for x
    x = 5,217,964,195.48/90,856.54
  6. Step 6: Final answer
    x = 57,430.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.