Home / 87,225.91-120,387.47-51,413.83

Finding the Fourth Proportional to 87,225.91, 120,387.47 and 51,413.83

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Solution

The fourth proportional to 87,225.91, 120,387.47 and 51,413.83 is: 70,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225.91 : 120,387.47 = 51,413.83 : x
  2. Step 2: Convert to fraction form
    87,225.91/120,387.47 = 51,413.83/x
  3. Step 3: Cross multiply
    87,225.91x = 120,387.47 × 51,413.83
  4. Step 4: Simplify right side
    87,225.91x = 6,189,580,916.71
  5. Step 5: Solve for x
    x = 6,189,580,916.71/87,225.91
  6. Step 6: Final answer
    x = 70,960.35

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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.