Home / 86,219.36-129,314.28-23,875.28

Finding the Fourth Proportional to 86,219.36, 129,314.28 and 23,875.28

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Solution

The fourth proportional to 86,219.36, 129,314.28 and 23,875.28 is: 35,808.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,219.36 : 129,314.28 = 23,875.28 : x
  2. Step 2: Convert to fraction form
    86,219.36/129,314.28 = 23,875.28/x
  3. Step 3: Cross multiply
    86,219.36x = 129,314.28 × 23,875.28
  4. Step 4: Simplify right side
    86,219.36x = 3,087,414,643.00
  5. Step 5: Solve for x
    x = 3,087,414,643.00/86,219.36
  6. Step 6: Final answer
    x = 35,808.83

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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.