Home / 90,903.52-136,316.40-40,972.96

Finding the Fourth Proportional to 90,903.52, 136,316.40 and 40,972.96

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Solution

The fourth proportional to 90,903.52, 136,316.40 and 40,972.96 is: 61,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,903.52 : 136,316.40 = 40,972.96 : x
  2. Step 2: Convert to fraction form
    90,903.52/136,316.40 = 40,972.96/x
  3. Step 3: Cross multiply
    90,903.52x = 136,316.40 × 40,972.96
  4. Step 4: Simplify right side
    90,903.52x = 5,585,286,404.54
  5. Step 5: Solve for x
    x = 5,585,286,404.54/90,903.52
  6. Step 6: Final answer
    x = 61,441.92

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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.