Home / 40,129.20-60,339.60-39,254.40

Finding the Fourth Proportional to 40,129.20, 60,339.60 and 39,254.40

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Solution

The fourth proportional to 40,129.20, 60,339.60 and 39,254.40 is: 59,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.20 : 60,339.60 = 39,254.40 : x
  2. Step 2: Convert to fraction form
    40,129.20/60,339.60 = 39,254.40/x
  3. Step 3: Cross multiply
    40,129.20x = 60,339.60 × 39,254.40
  4. Step 4: Simplify right side
    40,129.20x = 2,368,594,794.24
  5. Step 5: Solve for x
    x = 2,368,594,794.24/40,129.20
  6. Step 6: Final answer
    x = 59,024.22

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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.