Home / 67,634.10-93,364.95-40,419.78

Finding the Fourth Proportional to 67,634.10, 93,364.95 and 40,419.78

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Solution

The fourth proportional to 67,634.10, 93,364.95 and 40,419.78 is: 55,797.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,634.10 : 93,364.95 = 40,419.78 : x
  2. Step 2: Convert to fraction form
    67,634.10/93,364.95 = 40,419.78/x
  3. Step 3: Cross multiply
    67,634.10x = 93,364.95 × 40,419.78
  4. Step 4: Simplify right side
    67,634.10x = 3,773,790,536.61
  5. Step 5: Solve for x
    x = 3,773,790,536.61/67,634.10
  6. Step 6: Final answer
    x = 55,797.16

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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.