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Finding the Fourth Proportional to 58,214, 80,348.28 and 36,989.12

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Solution

The fourth proportional to 58,214, 80,348.28 and 36,989.12 is: 51,053.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,214 : 80,348.28 = 36,989.12 : x
  2. Step 2: Convert to fraction form
    58,214/80,348.28 = 36,989.12/x
  3. Step 3: Cross multiply
    58,214x = 80,348.28 × 36,989.12
  4. Step 4: Simplify right side
    58,214x = 2,972,012,170.71
  5. Step 5: Solve for x
    x = 2,972,012,170.71/58,214
  6. Step 6: Final answer
    x = 51,053.22

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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.