Home / 51,468.90-71,028.35-28,807.71

Finding the Fourth Proportional to 51,468.90, 71,028.35 and 28,807.71

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Solution

The fourth proportional to 51,468.90, 71,028.35 and 28,807.71 is: 39,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,468.90 : 71,028.35 = 28,807.71 : x
  2. Step 2: Convert to fraction form
    51,468.90/71,028.35 = 28,807.71/x
  3. Step 3: Cross multiply
    51,468.90x = 71,028.35 × 28,807.71
  4. Step 4: Simplify right side
    51,468.90x = 2,046,164,108.58
  5. Step 5: Solve for x
    x = 2,046,164,108.58/51,468.90
  6. Step 6: Final answer
    x = 39,755.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.