Home / 72,923.20-109,141.80-52,875.70

Finding the Fourth Proportional to 72,923.20, 109,141.80 and 52,875.70

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Solution

The fourth proportional to 72,923.20, 109,141.80 and 52,875.70 is: 79,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,923.20 : 109,141.80 = 52,875.70 : x
  2. Step 2: Convert to fraction form
    72,923.20/109,141.80 = 52,875.70/x
  3. Step 3: Cross multiply
    72,923.20x = 109,141.80 × 52,875.70
  4. Step 4: Simplify right side
    72,923.20x = 5,770,949,074.26
  5. Step 5: Solve for x
    x = 5,770,949,074.26/72,923.20
  6. Step 6: Final answer
    x = 79,137.35

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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.