Home / 82,960.20-124,440.30-49,280.40

Finding the Fourth Proportional to 82,960.20, 124,440.30 and 49,280.40

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Solution

The fourth proportional to 82,960.20, 124,440.30 and 49,280.40 is: 73,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,960.20 : 124,440.30 = 49,280.40 : x
  2. Step 2: Convert to fraction form
    82,960.20/124,440.30 = 49,280.40/x
  3. Step 3: Cross multiply
    82,960.20x = 124,440.30 × 49,280.40
  4. Step 4: Simplify right side
    82,960.20x = 6,132,467,760.12
  5. Step 5: Solve for x
    x = 6,132,467,760.12/82,960.20
  6. Step 6: Final answer
    x = 73,920.60

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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.