Home / 52,113.20-71,915.91-28,239.87

Finding the Fourth Proportional to 52,113.20, 71,915.91 and 28,239.87

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Solution

The fourth proportional to 52,113.20, 71,915.91 and 28,239.87 is: 38,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,113.20 : 71,915.91 = 28,239.87 : x
  2. Step 2: Convert to fraction form
    52,113.20/71,915.91 = 28,239.87/x
  3. Step 3: Cross multiply
    52,113.20x = 71,915.91 × 28,239.87
  4. Step 4: Simplify right side
    52,113.20x = 2,030,895,949.33
  5. Step 5: Solve for x
    x = 2,030,895,949.33/52,113.20
  6. Step 6: Final answer
    x = 38,970.86

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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.