Home / 77,125.40-115,493.70-57,296.60

Finding the Fourth Proportional to 77,125.40, 115,493.70 and 57,296.60

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Solution

The fourth proportional to 77,125.40, 115,493.70 and 57,296.60 is: 85,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,125.40 : 115,493.70 = 57,296.60 : x
  2. Step 2: Convert to fraction form
    77,125.40/115,493.70 = 57,296.60/x
  3. Step 3: Cross multiply
    77,125.40x = 115,493.70 × 57,296.60
  4. Step 4: Simplify right side
    77,125.40x = 6,617,396,331.42
  5. Step 5: Solve for x
    x = 6,617,396,331.42/77,125.40
  6. Step 6: Final answer
    x = 85,800.48

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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.