Home / 81,696.29-122,649.37-62,988.20

Finding the Fourth Proportional to 81,696.29, 122,649.37 and 62,988.20

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Solution

The fourth proportional to 81,696.29, 122,649.37 and 62,988.20 is: 94,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,696.29 : 122,649.37 = 62,988.20 : x
  2. Step 2: Convert to fraction form
    81,696.29/122,649.37 = 62,988.20/x
  3. Step 3: Cross multiply
    81,696.29x = 122,649.37 × 62,988.20
  4. Step 4: Simplify right side
    81,696.29x = 7,725,463,432.79
  5. Step 5: Solve for x
    x = 7,725,463,432.79/81,696.29
  6. Step 6: Final answer
    x = 94,563.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.