Home / 51,385.56-77,031.60-19,775.46

Finding the Fourth Proportional to 51,385.56, 77,031.60 and 19,775.46

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Solution

The fourth proportional to 51,385.56, 77,031.60 and 19,775.46 is: 29,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.56 : 77,031.60 = 19,775.46 : x
  2. Step 2: Convert to fraction form
    51,385.56/77,031.60 = 19,775.46/x
  3. Step 3: Cross multiply
    51,385.56x = 77,031.60 × 19,775.46
  4. Step 4: Simplify right side
    51,385.56x = 1,523,335,324.54
  5. Step 5: Solve for x
    x = 1,523,335,324.54/51,385.56
  6. Step 6: Final answer
    x = 29,645.20

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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.