Home / 67,671.20-93,391.20-38,995.52

Finding the Fourth Proportional to 67,671.20, 93,391.20 and 38,995.52

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Solution

The fourth proportional to 67,671.20, 93,391.20 and 38,995.52 is: 53,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,671.20 : 93,391.20 = 38,995.52 : x
  2. Step 2: Convert to fraction form
    67,671.20/93,391.20 = 38,995.52/x
  3. Step 3: Cross multiply
    67,671.20x = 93,391.20 × 38,995.52
  4. Step 4: Simplify right side
    67,671.20x = 3,641,838,407.42
  5. Step 5: Solve for x
    x = 3,641,838,407.42/67,671.20
  6. Step 6: Final answer
    x = 53,816.67

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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.