Home / 86,815.36-130,263.52-30,697.92

Finding the Fourth Proportional to 86,815.36, 130,263.52 and 30,697.92

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Solution

The fourth proportional to 86,815.36, 130,263.52 and 30,697.92 is: 46,061.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,815.36 : 130,263.52 = 30,697.92 : x
  2. Step 2: Convert to fraction form
    86,815.36/130,263.52 = 30,697.92/x
  3. Step 3: Cross multiply
    86,815.36x = 130,263.52 × 30,697.92
  4. Step 4: Simplify right side
    86,815.36x = 3,998,819,115.88
  5. Step 5: Solve for x
    x = 3,998,819,115.88/86,815.36
  6. Step 6: Final answer
    x = 46,061.19

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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.