Home / 79,218.74-118,854.58-25,913.15

Finding the Fourth Proportional to 79,218.74, 118,854.58 and 25,913.15

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Solution

The fourth proportional to 79,218.74, 118,854.58 and 25,913.15 is: 38,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,218.74 : 118,854.58 = 25,913.15 : x
  2. Step 2: Convert to fraction form
    79,218.74/118,854.58 = 25,913.15/x
  3. Step 3: Cross multiply
    79,218.74x = 118,854.58 × 25,913.15
  4. Step 4: Simplify right side
    79,218.74x = 3,079,895,965.45
  5. Step 5: Solve for x
    x = 3,079,895,965.45/79,218.74
  6. Step 6: Final answer
    x = 38,878.38

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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.