Home / 85,426.38-117,943.83-76,458.33

Finding the Fourth Proportional to 85,426.38, 117,943.83 and 76,458.33

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Solution

The fourth proportional to 85,426.38, 117,943.83 and 76,458.33 is: 105,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,426.38 : 117,943.83 = 76,458.33 : x
  2. Step 2: Convert to fraction form
    85,426.38/117,943.83 = 76,458.33/x
  3. Step 3: Cross multiply
    85,426.38x = 117,943.83 × 76,458.33
  4. Step 4: Simplify right side
    85,426.38x = 9,017,788,275.60
  5. Step 5: Solve for x
    x = 9,017,788,275.60/85,426.38
  6. Step 6: Final answer
    x = 105,562.10

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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.