Home / 81,746.92-122,629.02-34,987.24

Finding the Fourth Proportional to 81,746.92, 122,629.02 and 34,987.24

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Solution

The fourth proportional to 81,746.92, 122,629.02 and 34,987.24 is: 52,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,746.92 : 122,629.02 = 34,987.24 : x
  2. Step 2: Convert to fraction form
    81,746.92/122,629.02 = 34,987.24/x
  3. Step 3: Cross multiply
    81,746.92x = 122,629.02 × 34,987.24
  4. Step 4: Simplify right side
    81,746.92x = 4,290,450,953.70
  5. Step 5: Solve for x
    x = 4,290,450,953.70/81,746.92
  6. Step 6: Final answer
    x = 52,484.56

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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.