Home / 92,031.12-126,689.52-68,112.72

Finding the Fourth Proportional to 92,031.12, 126,689.52 and 68,112.72

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Solution

The fourth proportional to 92,031.12, 126,689.52 and 68,112.72 is: 93,763.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,031.12 : 126,689.52 = 68,112.72 : x
  2. Step 2: Convert to fraction form
    92,031.12/126,689.52 = 68,112.72/x
  3. Step 3: Cross multiply
    92,031.12x = 126,689.52 × 68,112.72
  4. Step 4: Simplify right side
    92,031.12x = 8,629,167,802.69
  5. Step 5: Solve for x
    x = 8,629,167,802.69/92,031.12
  6. Step 6: Final answer
    x = 93,763.59

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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.