Home / 86,026.40-129,076.02-41,686.16

Finding the Fourth Proportional to 86,026.40, 129,076.02 and 41,686.16

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Solution

The fourth proportional to 86,026.40, 129,076.02 and 41,686.16 is: 62,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,026.40 : 129,076.02 = 41,686.16 : x
  2. Step 2: Convert to fraction form
    86,026.40/129,076.02 = 41,686.16/x
  3. Step 3: Cross multiply
    86,026.40x = 129,076.02 × 41,686.16
  4. Step 4: Simplify right side
    86,026.40x = 5,380,683,621.88
  5. Step 5: Solve for x
    x = 5,380,683,621.88/86,026.40
  6. Step 6: Final answer
    x = 62,546.89

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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.