Home / 83,530.76-115,272.44-45,805.80

Finding the Fourth Proportional to 83,530.76, 115,272.44 and 45,805.80

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Solution

The fourth proportional to 83,530.76, 115,272.44 and 45,805.80 is: 63,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,530.76 : 115,272.44 = 45,805.80 : x
  2. Step 2: Convert to fraction form
    83,530.76/115,272.44 = 45,805.80/x
  3. Step 3: Cross multiply
    83,530.76x = 115,272.44 × 45,805.80
  4. Step 4: Simplify right side
    83,530.76x = 5,280,146,332.15
  5. Step 5: Solve for x
    x = 5,280,146,332.15/83,530.76
  6. Step 6: Final answer
    x = 63,212.00

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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.