Home / 72,864.08-109,203.96-35,432.72

Finding the Fourth Proportional to 72,864.08, 109,203.96 and 35,432.72

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Solution

The fourth proportional to 72,864.08, 109,203.96 and 35,432.72 is: 53,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864.08 : 109,203.96 = 35,432.72 : x
  2. Step 2: Convert to fraction form
    72,864.08/109,203.96 = 35,432.72/x
  3. Step 3: Cross multiply
    72,864.08x = 109,203.96 × 35,432.72
  4. Step 4: Simplify right side
    72,864.08x = 3,869,393,337.57
  5. Step 5: Solve for x
    x = 3,869,393,337.57/72,864.08
  6. Step 6: Final answer
    x = 53,104.26

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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.