Home / 86,583.40-129,870.24-23,402.59

Finding the Fourth Proportional to 86,583.40, 129,870.24 and 23,402.59

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Solution

The fourth proportional to 86,583.40, 129,870.24 and 23,402.59 is: 35,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,583.40 : 129,870.24 = 23,402.59 : x
  2. Step 2: Convert to fraction form
    86,583.40/129,870.24 = 23,402.59/x
  3. Step 3: Cross multiply
    86,583.40x = 129,870.24 × 23,402.59
  4. Step 4: Simplify right side
    86,583.40x = 3,039,299,979.92
  5. Step 5: Solve for x
    x = 3,039,299,979.92/86,583.40
  6. Step 6: Final answer
    x = 35,102.57

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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.