Home / 51,177.28-76,776.40-21,595.12

Finding the Fourth Proportional to 51,177.28, 76,776.40 and 21,595.12

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Solution

The fourth proportional to 51,177.28, 76,776.40 and 21,595.12 is: 32,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.28 : 76,776.40 = 21,595.12 : x
  2. Step 2: Convert to fraction form
    51,177.28/76,776.40 = 21,595.12/x
  3. Step 3: Cross multiply
    51,177.28x = 76,776.40 × 21,595.12
  4. Step 4: Simplify right side
    51,177.28x = 1,657,995,571.17
  5. Step 5: Solve for x
    x = 1,657,995,571.17/51,177.28
  6. Step 6: Final answer
    x = 32,397.10

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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.