Home / 85,371.18-128,023.94-58,995.96

Finding the Fourth Proportional to 85,371.18, 128,023.94 and 58,995.96

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Solution

The fourth proportional to 85,371.18, 128,023.94 and 58,995.96 is: 88,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,371.18 : 128,023.94 = 58,995.96 : x
  2. Step 2: Convert to fraction form
    85,371.18/128,023.94 = 58,995.96/x
  3. Step 3: Cross multiply
    85,371.18x = 128,023.94 × 58,995.96
  4. Step 4: Simplify right side
    85,371.18x = 7,552,895,243.28
  5. Step 5: Solve for x
    x = 7,552,895,243.28/85,371.18
  6. Step 6: Final answer
    x = 88,471.25

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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.