Home / 51,569.18-77,359.17-21,990.14

Finding the Fourth Proportional to 51,569.18, 77,359.17 and 21,990.14

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Solution

The fourth proportional to 51,569.18, 77,359.17 and 21,990.14 is: 32,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,569.18 : 77,359.17 = 21,990.14 : x
  2. Step 2: Convert to fraction form
    51,569.18/77,359.17 = 21,990.14/x
  3. Step 3: Cross multiply
    51,569.18x = 77,359.17 × 21,990.14
  4. Step 4: Simplify right side
    51,569.18x = 1,701,138,978.58
  5. Step 5: Solve for x
    x = 1,701,138,978.58/51,569.18
  6. Step 6: Final answer
    x = 32,987.51

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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.