Home / 83,385.24-115,071.66-45,661.80

Finding the Fourth Proportional to 83,385.24, 115,071.66 and 45,661.80

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Solution

The fourth proportional to 83,385.24, 115,071.66 and 45,661.80 is: 63,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,385.24 : 115,071.66 = 45,661.80 : x
  2. Step 2: Convert to fraction form
    83,385.24/115,071.66 = 45,661.80/x
  3. Step 3: Cross multiply
    83,385.24x = 115,071.66 × 45,661.80
  4. Step 4: Simplify right side
    83,385.24x = 5,254,379,124.59
  5. Step 5: Solve for x
    x = 5,254,379,124.59/83,385.24
  6. Step 6: Final answer
    x = 63,013.30

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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.