Home / 42,876.74-59,172-25,880.70

Finding the Fourth Proportional to 42,876.74, 59,172 and 25,880.70

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Solution

The fourth proportional to 42,876.74, 59,172 and 25,880.70 is: 35,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,876.74 : 59,172 = 25,880.70 : x
  2. Step 2: Convert to fraction form
    42,876.74/59,172 = 25,880.70/x
  3. Step 3: Cross multiply
    42,876.74x = 59,172 × 25,880.70
  4. Step 4: Simplify right side
    42,876.74x = 1,531,412,780.40
  5. Step 5: Solve for x
    x = 1,531,412,780.40/42,876.74
  6. Step 6: Final answer
    x = 35,716.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.