Home / 86,029.29-129,043.88-26,870.03

Finding the Fourth Proportional to 86,029.29, 129,043.88 and 26,870.03

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Solution

The fourth proportional to 86,029.29, 129,043.88 and 26,870.03 is: 40,305.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,029.29 : 129,043.88 = 26,870.03 : x
  2. Step 2: Convert to fraction form
    86,029.29/129,043.88 = 26,870.03/x
  3. Step 3: Cross multiply
    86,029.29x = 129,043.88 × 26,870.03
  4. Step 4: Simplify right side
    86,029.29x = 3,467,412,883.17
  5. Step 5: Solve for x
    x = 3,467,412,883.17/86,029.29
  6. Step 6: Final answer
    x = 40,305.03

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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.