Home / 51,851.65-77,726.91-28,137.76

Finding the Fourth Proportional to 51,851.65, 77,726.91 and 28,137.76

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Solution

The fourth proportional to 51,851.65, 77,726.91 and 28,137.76 is: 42,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,851.65 : 77,726.91 = 28,137.76 : x
  2. Step 2: Convert to fraction form
    51,851.65/77,726.91 = 28,137.76/x
  3. Step 3: Cross multiply
    51,851.65x = 77,726.91 × 28,137.76
  4. Step 4: Simplify right side
    51,851.65x = 2,187,061,139.12
  5. Step 5: Solve for x
    x = 2,187,061,139.12/51,851.65
  6. Step 6: Final answer
    x = 42,179.20

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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.