Home / 87,155.52-130,746.24-40,413.12

Finding the Fourth Proportional to 87,155.52, 130,746.24 and 40,413.12

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Solution

The fourth proportional to 87,155.52, 130,746.24 and 40,413.12 is: 60,625.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,155.52 : 130,746.24 = 40,413.12 : x
  2. Step 2: Convert to fraction form
    87,155.52/130,746.24 = 40,413.12/x
  3. Step 3: Cross multiply
    87,155.52x = 130,746.24 × 40,413.12
  4. Step 4: Simplify right side
    87,155.52x = 5,283,863,486.67
  5. Step 5: Solve for x
    x = 5,283,863,486.67/87,155.52
  6. Step 6: Final answer
    x = 60,625.69

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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.