Home / 80,749.52-121,143.70-25,345.52

Finding the Fourth Proportional to 80,749.52, 121,143.70 and 25,345.52

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Solution

The fourth proportional to 80,749.52, 121,143.70 and 25,345.52 is: 38,024.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,749.52 : 121,143.70 = 25,345.52 : x
  2. Step 2: Convert to fraction form
    80,749.52/121,143.70 = 25,345.52/x
  3. Step 3: Cross multiply
    80,749.52x = 121,143.70 × 25,345.52
  4. Step 4: Simplify right side
    80,749.52x = 3,070,450,071.22
  5. Step 5: Solve for x
    x = 3,070,450,071.22/80,749.52
  6. Step 6: Final answer
    x = 38,024.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.