Home / 85,689.74-118,253.06-49,371.12

Finding the Fourth Proportional to 85,689.74, 118,253.06 and 49,371.12

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Solution

The fourth proportional to 85,689.74, 118,253.06 and 49,371.12 is: 68,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,689.74 : 118,253.06 = 49,371.12 : x
  2. Step 2: Convert to fraction form
    85,689.74/118,253.06 = 49,371.12/x
  3. Step 3: Cross multiply
    85,689.74x = 118,253.06 × 49,371.12
  4. Step 4: Simplify right side
    85,689.74x = 5,838,285,953.91
  5. Step 5: Solve for x
    x = 5,838,285,953.91/85,689.74
  6. Step 6: Final answer
    x = 68,132.85

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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.