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Finding the Fourth Proportional to 86,381.68, 119,202.12 and 48,653.50

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Solution

The fourth proportional to 86,381.68, 119,202.12 and 48,653.50 is: 67,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,381.68 : 119,202.12 = 48,653.50 : x
  2. Step 2: Convert to fraction form
    86,381.68/119,202.12 = 48,653.50/x
  3. Step 3: Cross multiply
    86,381.68x = 119,202.12 × 48,653.50
  4. Step 4: Simplify right side
    86,381.68x = 5,799,600,345.42
  5. Step 5: Solve for x
    x = 5,799,600,345.42/86,381.68
  6. Step 6: Final answer
    x = 67,139.24

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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.