Home / 42,940.80-64,292.27-32,378.81

Finding the Fourth Proportional to 42,940.80, 64,292.27 and 32,378.81

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Solution

The fourth proportional to 42,940.80, 64,292.27 and 32,378.81 is: 48,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,940.80 : 64,292.27 = 32,378.81 : x
  2. Step 2: Convert to fraction form
    42,940.80/64,292.27 = 32,378.81/x
  3. Step 3: Cross multiply
    42,940.80x = 64,292.27 × 32,378.81
  4. Step 4: Simplify right side
    42,940.80x = 2,081,706,711.44
  5. Step 5: Solve for x
    x = 2,081,706,711.44/42,940.80
  6. Step 6: Final answer
    x = 48,478.53

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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.