Home / 78,426.10-117,621.51-22,265.02

Finding the Fourth Proportional to 78,426.10, 117,621.51 and 22,265.02

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Solution

The fourth proportional to 78,426.10, 117,621.51 and 22,265.02 is: 33,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,426.10 : 117,621.51 = 22,265.02 : x
  2. Step 2: Convert to fraction form
    78,426.10/117,621.51 = 22,265.02/x
  3. Step 3: Cross multiply
    78,426.10x = 117,621.51 × 22,265.02
  4. Step 4: Simplify right side
    78,426.10x = 2,618,845,272.58
  5. Step 5: Solve for x
    x = 2,618,845,272.58/78,426.10
  6. Step 6: Final answer
    x = 33,392.52

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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.