Home / 81,344.76-112,296.53-51,146.69

Finding the Fourth Proportional to 81,344.76, 112,296.53 and 51,146.69

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Solution

The fourth proportional to 81,344.76, 112,296.53 and 51,146.69 is: 70,608.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,344.76 : 112,296.53 = 51,146.69 : x
  2. Step 2: Convert to fraction form
    81,344.76/112,296.53 = 51,146.69/x
  3. Step 3: Cross multiply
    81,344.76x = 112,296.53 × 51,146.69
  4. Step 4: Simplify right side
    81,344.76x = 5,743,595,718.34
  5. Step 5: Solve for x
    x = 5,743,595,718.34/81,344.76
  6. Step 6: Final answer
    x = 70,608.06

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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.