Home / 86,621.10-129,833.01-36,670.02

Finding the Fourth Proportional to 86,621.10, 129,833.01 and 36,670.02

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Solution

The fourth proportional to 86,621.10, 129,833.01 and 36,670.02 is: 54,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,621.10 : 129,833.01 = 36,670.02 : x
  2. Step 2: Convert to fraction form
    86,621.10/129,833.01 = 36,670.02/x
  3. Step 3: Cross multiply
    86,621.10x = 129,833.01 × 36,670.02
  4. Step 4: Simplify right side
    86,621.10x = 4,760,979,073.36
  5. Step 5: Solve for x
    x = 4,760,979,073.36/86,621.10
  6. Step 6: Final answer
    x = 54,963.27

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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.