Home / 77,646.18-116,471.87-21,481.59

Finding the Fourth Proportional to 77,646.18, 116,471.87 and 21,481.59

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Solution

The fourth proportional to 77,646.18, 116,471.87 and 21,481.59 is: 32,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,646.18 : 116,471.87 = 21,481.59 : x
  2. Step 2: Convert to fraction form
    77,646.18/116,471.87 = 21,481.59/x
  3. Step 3: Cross multiply
    77,646.18x = 116,471.87 × 21,481.59
  4. Step 4: Simplify right side
    77,646.18x = 2,502,000,413.70
  5. Step 5: Solve for x
    x = 2,502,000,413.70/77,646.18
  6. Step 6: Final answer
    x = 32,223.10

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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.