Home / 42,275.25-63,343.61-25,640.68

Finding the Fourth Proportional to 42,275.25, 63,343.61 and 25,640.68

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Solution

The fourth proportional to 42,275.25, 63,343.61 and 25,640.68 is: 38,419.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,275.25 : 63,343.61 = 25,640.68 : x
  2. Step 2: Convert to fraction form
    42,275.25/63,343.61 = 25,640.68/x
  3. Step 3: Cross multiply
    42,275.25x = 63,343.61 × 25,640.68
  4. Step 4: Simplify right side
    42,275.25x = 1,624,173,105.85
  5. Step 5: Solve for x
    x = 1,624,173,105.85/42,275.25
  6. Step 6: Final answer
    x = 38,419.01

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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.