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Finding the Fourth Proportional to 78,253.58, 117,337.88 and 35,535.56

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Solution

The fourth proportional to 78,253.58, 117,337.88 and 35,535.56 is: 53,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,253.58 : 117,337.88 = 35,535.56 : x
  2. Step 2: Convert to fraction form
    78,253.58/117,337.88 = 35,535.56/x
  3. Step 3: Cross multiply
    78,253.58x = 117,337.88 × 35,535.56
  4. Step 4: Simplify right side
    78,253.58x = 4,169,666,510.65
  5. Step 5: Solve for x
    x = 4,169,666,510.65/78,253.58
  6. Step 6: Final answer
    x = 53,284.04

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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.