Home / 71,079.78-98,010.14-58,118.63

Finding the Fourth Proportional to 71,079.78, 98,010.14 and 58,118.63

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Solution

The fourth proportional to 71,079.78, 98,010.14 and 58,118.63 is: 80,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,079.78 : 98,010.14 = 58,118.63 : x
  2. Step 2: Convert to fraction form
    71,079.78/98,010.14 = 58,118.63/x
  3. Step 3: Cross multiply
    71,079.78x = 98,010.14 × 58,118.63
  4. Step 4: Simplify right side
    71,079.78x = 5,696,214,282.26
  5. Step 5: Solve for x
    x = 5,696,214,282.26/71,079.78
  6. Step 6: Final answer
    x = 80,138.32

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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.