Home / 86,739.68-130,002.96-49,331

Finding the Fourth Proportional to 86,739.68, 130,002.96 and 49,331

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Solution

The fourth proportional to 86,739.68, 130,002.96 and 49,331 is: 73,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,739.68 : 130,002.96 = 49,331 : x
  2. Step 2: Convert to fraction form
    86,739.68/130,002.96 = 49,331/x
  3. Step 3: Cross multiply
    86,739.68x = 130,002.96 × 49,331
  4. Step 4: Simplify right side
    86,739.68x = 6,413,176,019.76
  5. Step 5: Solve for x
    x = 6,413,176,019.76/86,739.68
  6. Step 6: Final answer
    x = 73,935.90

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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.