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Finding the Fourth Proportional to 86,868.84, 130,322.40 and 49,446.54

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Solution

The fourth proportional to 86,868.84, 130,322.40 and 49,446.54 is: 74,180.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,868.84 : 130,322.40 = 49,446.54 : x
  2. Step 2: Convert to fraction form
    86,868.84/130,322.40 = 49,446.54/x
  3. Step 3: Cross multiply
    86,868.84x = 130,322.40 × 49,446.54
  4. Step 4: Simplify right side
    86,868.84x = 6,443,991,764.50
  5. Step 5: Solve for x
    x = 6,443,991,764.50/86,868.84
  6. Step 6: Final answer
    x = 74,180.70

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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.