Home / 85,454.88-117,761.20-61,536.39

Finding the Fourth Proportional to 85,454.88, 117,761.20 and 61,536.39

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Solution

The fourth proportional to 85,454.88, 117,761.20 and 61,536.39 is: 84,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,454.88 : 117,761.20 = 61,536.39 : x
  2. Step 2: Convert to fraction form
    85,454.88/117,761.20 = 61,536.39/x
  3. Step 3: Cross multiply
    85,454.88x = 117,761.20 × 61,536.39
  4. Step 4: Simplify right side
    85,454.88x = 7,246,599,130.07
  5. Step 5: Solve for x
    x = 7,246,599,130.07/85,454.88
  6. Step 6: Final answer
    x = 84,800.30

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1.5x scale

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.