Home / 83,746.76-115,518.70-55,069.72

Finding the Fourth Proportional to 83,746.76, 115,518.70 and 55,069.72

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Solution

The fourth proportional to 83,746.76, 115,518.70 and 55,069.72 is: 75,962.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,746.76 : 115,518.70 = 55,069.72 : x
  2. Step 2: Convert to fraction form
    83,746.76/115,518.70 = 55,069.72/x
  3. Step 3: Cross multiply
    83,746.76x = 115,518.70 × 55,069.72
  4. Step 4: Simplify right side
    83,746.76x = 6,361,582,326.09
  5. Step 5: Solve for x
    x = 6,361,582,326.09/83,746.76
  6. Step 6: Final answer
    x = 75,962.13

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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.