Home / 71,242.63-98,315.22-39,412.66

Finding the Fourth Proportional to 71,242.63, 98,315.22 and 39,412.66

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Solution

The fourth proportional to 71,242.63, 98,315.22 and 39,412.66 is: 54,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,242.63 : 98,315.22 = 39,412.66 : x
  2. Step 2: Convert to fraction form
    71,242.63/98,315.22 = 39,412.66/x
  3. Step 3: Cross multiply
    71,242.63x = 98,315.22 × 39,412.66
  4. Step 4: Simplify right side
    71,242.63x = 3,874,864,338.69
  5. Step 5: Solve for x
    x = 3,874,864,338.69/71,242.63
  6. Step 6: Final answer
    x = 54,389.69

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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.