Home / 52,585.65-78,788.72-28,913.02

Finding the Fourth Proportional to 52,585.65, 78,788.72 and 28,913.02

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Solution

The fourth proportional to 52,585.65, 78,788.72 and 28,913.02 is: 43,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,585.65 : 78,788.72 = 28,913.02 : x
  2. Step 2: Convert to fraction form
    52,585.65/78,788.72 = 28,913.02/x
  3. Step 3: Cross multiply
    52,585.65x = 78,788.72 × 28,913.02
  4. Step 4: Simplify right side
    52,585.65x = 2,278,019,712.45
  5. Step 5: Solve for x
    x = 2,278,019,712.45/52,585.65
  6. Step 6: Final answer
    x = 43,320.18

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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.