Home / 52,216.32-78,306.88-18,929.40

Finding the Fourth Proportional to 52,216.32, 78,306.88 and 18,929.40

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Solution

The fourth proportional to 52,216.32, 78,306.88 and 18,929.40 is: 28,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,216.32 : 78,306.88 = 18,929.40 : x
  2. Step 2: Convert to fraction form
    52,216.32/78,306.88 = 18,929.40/x
  3. Step 3: Cross multiply
    52,216.32x = 78,306.88 × 18,929.40
  4. Step 4: Simplify right side
    52,216.32x = 1,482,302,254.27
  5. Step 5: Solve for x
    x = 1,482,302,254.27/52,216.32
  6. Step 6: Final answer
    x = 28,387.72

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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.