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Finding the Fourth Proportional to 83,413.32, 115,073.52 and 65,560.22

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Solution

The fourth proportional to 83,413.32, 115,073.52 and 65,560.22 is: 90,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,413.32 : 115,073.52 = 65,560.22 : x
  2. Step 2: Convert to fraction form
    83,413.32/115,073.52 = 65,560.22/x
  3. Step 3: Cross multiply
    83,413.32x = 115,073.52 × 65,560.22
  4. Step 4: Simplify right side
    83,413.32x = 7,544,244,712.01
  5. Step 5: Solve for x
    x = 7,544,244,712.01/83,413.32
  6. Step 6: Final answer
    x = 90,444.12

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1.5x scale

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.