Home / 67,640.40-93,350.16-38,961.24

Finding the Fourth Proportional to 67,640.40, 93,350.16 and 38,961.24

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Solution

The fourth proportional to 67,640.40, 93,350.16 and 38,961.24 is: 53,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,640.40 : 93,350.16 = 38,961.24 : x
  2. Step 2: Convert to fraction form
    67,640.40/93,350.16 = 38,961.24/x
  3. Step 3: Cross multiply
    67,640.40x = 93,350.16 × 38,961.24
  4. Step 4: Simplify right side
    67,640.40x = 3,637,037,987.80
  5. Step 5: Solve for x
    x = 3,637,037,987.80/67,640.40
  6. Step 6: Final answer
    x = 53,770.20

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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.