Home / 52,442.66-78,616.76-19,139.36

Finding the Fourth Proportional to 52,442.66, 78,616.76 and 19,139.36

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Solution

The fourth proportional to 52,442.66, 78,616.76 and 19,139.36 is: 28,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,442.66 : 78,616.76 = 19,139.36 : x
  2. Step 2: Convert to fraction form
    52,442.66/78,616.76 = 19,139.36/x
  3. Step 3: Cross multiply
    52,442.66x = 78,616.76 × 19,139.36
  4. Step 4: Simplify right side
    52,442.66x = 1,504,674,532.77
  5. Step 5: Solve for x
    x = 1,504,674,532.77/52,442.66
  6. Step 6: Final answer
    x = 28,691.80

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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.