Home / 86,422.06-129,631.77-52,698.01

Finding the Fourth Proportional to 86,422.06, 129,631.77 and 52,698.01

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Solution

The fourth proportional to 86,422.06, 129,631.77 and 52,698.01 is: 79,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,422.06 : 129,631.77 = 52,698.01 : x
  2. Step 2: Convert to fraction form
    86,422.06/129,631.77 = 52,698.01/x
  3. Step 3: Cross multiply
    86,422.06x = 129,631.77 × 52,698.01
  4. Step 4: Simplify right side
    86,422.06x = 6,831,336,311.78
  5. Step 5: Solve for x
    x = 6,831,336,311.78/86,422.06
  6. Step 6: Final answer
    x = 79,046.21

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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.