Home / 52,209.74-78,314.51-18,929.75

Finding the Fourth Proportional to 52,209.74, 78,314.51 and 18,929.75

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Solution

The fourth proportional to 52,209.74, 78,314.51 and 18,929.75 is: 28,394.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,209.74 : 78,314.51 = 18,929.75 : x
  2. Step 2: Convert to fraction form
    52,209.74/78,314.51 = 18,929.75/x
  3. Step 3: Cross multiply
    52,209.74x = 78,314.51 × 18,929.75
  4. Step 4: Simplify right side
    52,209.74x = 1,482,473,751.42
  5. Step 5: Solve for x
    x = 1,482,473,751.42/52,209.74
  6. Step 6: Final answer
    x = 28,394.58

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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.