Home / 65,321.20-90,152.40-47,230.66

Finding the Fourth Proportional to 65,321.20, 90,152.40 and 47,230.66

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Solution

The fourth proportional to 65,321.20, 90,152.40 and 47,230.66 is: 65,184.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,321.20 : 90,152.40 = 47,230.66 : x
  2. Step 2: Convert to fraction form
    65,321.20/90,152.40 = 47,230.66/x
  3. Step 3: Cross multiply
    65,321.20x = 90,152.40 × 47,230.66
  4. Step 4: Simplify right side
    65,321.20x = 4,257,957,352.58
  5. Step 5: Solve for x
    x = 4,257,957,352.58/65,321.20
  6. Step 6: Final answer
    x = 65,184.92

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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.