Home / 66,329.88-91,413.36-62,121.24

Finding the Fourth Proportional to 66,329.88, 91,413.36 and 62,121.24

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Solution

The fourth proportional to 66,329.88, 91,413.36 and 62,121.24 is: 85,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,329.88 : 91,413.36 = 62,121.24 : x
  2. Step 2: Convert to fraction form
    66,329.88/91,413.36 = 62,121.24/x
  3. Step 3: Cross multiply
    66,329.88x = 91,413.36 × 62,121.24
  4. Step 4: Simplify right side
    66,329.88x = 5,678,711,275.77
  5. Step 5: Solve for x
    x = 5,678,711,275.77/66,329.88
  6. Step 6: Final answer
    x = 85,613.17

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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.