Home / 78,427.31-117,350.24-46,854.54

Finding the Fourth Proportional to 78,427.31, 117,350.24 and 46,854.54

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Solution

The fourth proportional to 78,427.31, 117,350.24 and 46,854.54 is: 70,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,427.31 : 117,350.24 = 46,854.54 : x
  2. Step 2: Convert to fraction form
    78,427.31/117,350.24 = 46,854.54/x
  3. Step 3: Cross multiply
    78,427.31x = 117,350.24 × 46,854.54
  4. Step 4: Simplify right side
    78,427.31x = 5,498,391,279.82
  5. Step 5: Solve for x
    x = 5,498,391,279.82/78,427.31
  6. Step 6: Final answer
    x = 70,108.12

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1.5x scale

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.