Home / 81,269.17-112,220.67-51,104.95

Finding the Fourth Proportional to 81,269.17, 112,220.67 and 51,104.95

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Solution

The fourth proportional to 81,269.17, 112,220.67 and 51,104.95 is: 70,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269.17 : 112,220.67 = 51,104.95 : x
  2. Step 2: Convert to fraction form
    81,269.17/112,220.67 = 51,104.95/x
  3. Step 3: Cross multiply
    81,269.17x = 112,220.67 × 51,104.95
  4. Step 4: Simplify right side
    81,269.17x = 5,735,031,729.32
  5. Step 5: Solve for x
    x = 5,735,031,729.32/81,269.17
  6. Step 6: Final answer
    x = 70,568.36

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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.