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Finding the Fourth Proportional to 86,674.91, 119,609.10 and 48,434.78

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Solution

The fourth proportional to 86,674.91, 119,609.10 and 48,434.78 is: 66,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,674.91 : 119,609.10 = 48,434.78 : x
  2. Step 2: Convert to fraction form
    86,674.91/119,609.10 = 48,434.78/x
  3. Step 3: Cross multiply
    86,674.91x = 119,609.10 × 48,434.78
  4. Step 4: Simplify right side
    86,674.91x = 5,793,240,444.50
  5. Step 5: Solve for x
    x = 5,793,240,444.50/86,674.91
  6. Step 6: Final answer
    x = 66,838.72

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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.