Home / 67,208.20-92,741.88-38,915.68

Finding the Fourth Proportional to 67,208.20, 92,741.88 and 38,915.68

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Solution

The fourth proportional to 67,208.20, 92,741.88 and 38,915.68 is: 53,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,208.20 : 92,741.88 = 38,915.68 : x
  2. Step 2: Convert to fraction form
    67,208.20/92,741.88 = 38,915.68/x
  3. Step 3: Cross multiply
    67,208.20x = 92,741.88 × 38,915.68
  4. Step 4: Simplify right side
    67,208.20x = 3,609,113,324.68
  5. Step 5: Solve for x
    x = 3,609,113,324.68/67,208.20
  6. Step 6: Final answer
    x = 53,700.49

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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.