Home / 67,720.15-93,478.88-40,863.79

Finding the Fourth Proportional to 67,720.15, 93,478.88 and 40,863.79

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Solution

The fourth proportional to 67,720.15, 93,478.88 and 40,863.79 is: 56,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,720.15 : 93,478.88 = 40,863.79 : x
  2. Step 2: Convert to fraction form
    67,720.15/93,478.88 = 40,863.79/x
  3. Step 3: Cross multiply
    67,720.15x = 93,478.88 × 40,863.79
  4. Step 4: Simplify right side
    67,720.15x = 3,819,901,321.76
  5. Step 5: Solve for x
    x = 3,819,901,321.76/67,720.15
  6. Step 6: Final answer
    x = 56,407.16

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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.