Home / 86,678.48-119,614.92-48,438.56

Finding the Fourth Proportional to 86,678.48, 119,614.92 and 48,438.56

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Solution

The fourth proportional to 86,678.48, 119,614.92 and 48,438.56 is: 66,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,678.48 : 119,614.92 = 48,438.56 : x
  2. Step 2: Convert to fraction form
    86,678.48/119,614.92 = 48,438.56/x
  3. Step 3: Cross multiply
    86,678.48x = 119,614.92 × 48,438.56
  4. Step 4: Simplify right side
    86,678.48x = 5,793,974,479.32
  5. Step 5: Solve for x
    x = 5,793,974,479.32/86,678.48
  6. Step 6: Final answer
    x = 66,844.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.