Home / 51,627.92-77,459.16-20,472.08

Finding the Fourth Proportional to 51,627.92, 77,459.16 and 20,472.08

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Solution

The fourth proportional to 51,627.92, 77,459.16 and 20,472.08 is: 30,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,627.92 : 77,459.16 = 20,472.08 : x
  2. Step 2: Convert to fraction form
    51,627.92/77,459.16 = 20,472.08/x
  3. Step 3: Cross multiply
    51,627.92x = 77,459.16 × 20,472.08
  4. Step 4: Simplify right side
    51,627.92x = 1,585,750,120.25
  5. Step 5: Solve for x
    x = 1,585,750,120.25/51,627.92
  6. Step 6: Final answer
    x = 30,714.97

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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.