Home / 72,939.04-109,366.80-43,377.52

Finding the Fourth Proportional to 72,939.04, 109,366.80 and 43,377.52

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Solution

The fourth proportional to 72,939.04, 109,366.80 and 43,377.52 is: 65,041.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,939.04 : 109,366.80 = 43,377.52 : x
  2. Step 2: Convert to fraction form
    72,939.04/109,366.80 = 43,377.52/x
  3. Step 3: Cross multiply
    72,939.04x = 109,366.80 × 43,377.52
  4. Step 4: Simplify right side
    72,939.04x = 4,744,060,554.34
  5. Step 5: Solve for x
    x = 4,744,060,554.34/72,939.04
  6. Step 6: Final answer
    x = 65,041.44

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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.