Home / 42,759.28-64,109.76-25,219.54

Finding the Fourth Proportional to 42,759.28, 64,109.76 and 25,219.54

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Solution

The fourth proportional to 42,759.28, 64,109.76 and 25,219.54 is: 37,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,759.28 : 64,109.76 = 25,219.54 : x
  2. Step 2: Convert to fraction form
    42,759.28/64,109.76 = 25,219.54/x
  3. Step 3: Cross multiply
    42,759.28x = 64,109.76 × 25,219.54
  4. Step 4: Simplify right side
    42,759.28x = 1,616,818,656.71
  5. Step 5: Solve for x
    x = 1,616,818,656.71/42,759.28
  6. Step 6: Final answer
    x = 37,812.11

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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.