Home / 42,696.26-58,790.40-38,691.31

Finding the Fourth Proportional to 42,696.26, 58,790.40 and 38,691.31

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Solution

The fourth proportional to 42,696.26, 58,790.40 and 38,691.31 is: 53,275.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,696.26 : 58,790.40 = 38,691.31 : x
  2. Step 2: Convert to fraction form
    42,696.26/58,790.40 = 38,691.31/x
  3. Step 3: Cross multiply
    42,696.26x = 58,790.40 × 38,691.31
  4. Step 4: Simplify right side
    42,696.26x = 2,274,677,664.91
  5. Step 5: Solve for x
    x = 2,274,677,664.91/42,696.26
  6. Step 6: Final answer
    x = 53,275.81

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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.