Home / 71,973.25-99,319.62-39,265.71

Finding the Fourth Proportional to 71,973.25, 99,319.62 and 39,265.71

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Solution

The fourth proportional to 71,973.25, 99,319.62 and 39,265.71 is: 54,184.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.25 : 99,319.62 = 39,265.71 : x
  2. Step 2: Convert to fraction form
    71,973.25/99,319.62 = 39,265.71/x
  3. Step 3: Cross multiply
    71,973.25x = 99,319.62 × 39,265.71
  4. Step 4: Simplify right side
    71,973.25x = 3,899,855,635.51
  5. Step 5: Solve for x
    x = 3,899,855,635.51/71,973.25
  6. Step 6: Final answer
    x = 54,184.79

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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.