Home / 72,147.18-108,242.64-34,696.65

Finding the Fourth Proportional to 72,147.18, 108,242.64 and 34,696.65

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Solution

The fourth proportional to 72,147.18, 108,242.64 and 34,696.65 is: 52,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,147.18 : 108,242.64 = 34,696.65 : x
  2. Step 2: Convert to fraction form
    72,147.18/108,242.64 = 34,696.65/x
  3. Step 3: Cross multiply
    72,147.18x = 108,242.64 × 34,696.65
  4. Step 4: Simplify right side
    72,147.18x = 3,755,656,995.16
  5. Step 5: Solve for x
    x = 3,755,656,995.16/72,147.18
  6. Step 6: Final answer
    x = 52,055.49

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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.