Home / 52,253.65-78,374.40-18,515.83

Finding the Fourth Proportional to 52,253.65, 78,374.40 and 18,515.83

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Solution

The fourth proportional to 52,253.65, 78,374.40 and 18,515.83 is: 27,771.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,253.65 : 78,374.40 = 18,515.83 : x
  2. Step 2: Convert to fraction form
    52,253.65/78,374.40 = 18,515.83/x
  3. Step 3: Cross multiply
    52,253.65x = 78,374.40 × 18,515.83
  4. Step 4: Simplify right side
    52,253.65x = 1,451,167,066.75
  5. Step 5: Solve for x
    x = 1,451,167,066.75/52,253.65
  6. Step 6: Final answer
    x = 27,771.59

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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.