Home / 60,400.12-90,577.50-20,947.72

Finding the Fourth Proportional to 60,400.12, 90,577.50 and 20,947.72

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Solution

The fourth proportional to 60,400.12, 90,577.50 and 20,947.72 is: 31,413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,400.12 : 90,577.50 = 20,947.72 : x
  2. Step 2: Convert to fraction form
    60,400.12/90,577.50 = 20,947.72/x
  3. Step 3: Cross multiply
    60,400.12x = 90,577.50 × 20,947.72
  4. Step 4: Simplify right side
    60,400.12x = 1,897,392,108.30
  5. Step 5: Solve for x
    x = 1,897,392,108.30/60,400.12
  6. Step 6: Final answer
    x = 31,413.71

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1.5x scale

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.