Home / 67,218.41-92,751.12-38,918.63

Finding the Fourth Proportional to 67,218.41, 92,751.12 and 38,918.63

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Solution

The fourth proportional to 67,218.41, 92,751.12 and 38,918.63 is: 53,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,218.41 : 92,751.12 = 38,918.63 : x
  2. Step 2: Convert to fraction form
    67,218.41/92,751.12 = 38,918.63/x
  3. Step 3: Cross multiply
    67,218.41x = 92,751.12 × 38,918.63
  4. Step 4: Simplify right side
    67,218.41x = 3,609,746,057.61
  5. Step 5: Solve for x
    x = 3,609,746,057.61/67,218.41
  6. Step 6: Final answer
    x = 53,701.75

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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.