Home / 90,154.61-124,413.43-54,335.19

Finding the Fourth Proportional to 90,154.61, 124,413.43 and 54,335.19

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Solution

The fourth proportional to 90,154.61, 124,413.43 and 54,335.19 is: 74,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,154.61 : 124,413.43 = 54,335.19 : x
  2. Step 2: Convert to fraction form
    90,154.61/124,413.43 = 54,335.19/x
  3. Step 3: Cross multiply
    90,154.61x = 124,413.43 × 54,335.19
  4. Step 4: Simplify right side
    90,154.61x = 6,760,027,357.60
  5. Step 5: Solve for x
    x = 6,760,027,357.60/90,154.61
  6. Step 6: Final answer
    x = 74,982.60

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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.