Home / 57,976.40-86,789.53-52,432.35

Finding the Fourth Proportional to 57,976.40, 86,789.53 and 52,432.35

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Solution

The fourth proportional to 57,976.40, 86,789.53 and 52,432.35 is: 78,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,976.40 : 86,789.53 = 52,432.35 : x
  2. Step 2: Convert to fraction form
    57,976.40/86,789.53 = 52,432.35/x
  3. Step 3: Cross multiply
    57,976.40x = 86,789.53 × 52,432.35
  4. Step 4: Simplify right side
    57,976.40x = 4,550,579,013.30
  5. Step 5: Solve for x
    x = 4,550,579,013.30/57,976.40
  6. Step 6: Final answer
    x = 78,490.20

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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.