Home / 87,878.44-121,272.69-47,592.28

Finding the Fourth Proportional to 87,878.44, 121,272.69 and 47,592.28

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Solution

The fourth proportional to 87,878.44, 121,272.69 and 47,592.28 is: 65,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.44 : 121,272.69 = 47,592.28 : x
  2. Step 2: Convert to fraction form
    87,878.44/121,272.69 = 47,592.28/x
  3. Step 3: Cross multiply
    87,878.44x = 121,272.69 × 47,592.28
  4. Step 4: Simplify right side
    87,878.44x = 5,771,643,818.83
  5. Step 5: Solve for x
    x = 5,771,643,818.83/87,878.44
  6. Step 6: Final answer
    x = 65,677.59

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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.