Home / 89,721.54-134,471.48-45,360.95

Finding the Fourth Proportional to 89,721.54, 134,471.48 and 45,360.95

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Solution

The fourth proportional to 89,721.54, 134,471.48 and 45,360.95 is: 67,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,721.54 : 134,471.48 = 45,360.95 : x
  2. Step 2: Convert to fraction form
    89,721.54/134,471.48 = 45,360.95/x
  3. Step 3: Cross multiply
    89,721.54x = 134,471.48 × 45,360.95
  4. Step 4: Simplify right side
    89,721.54x = 6,099,753,181.54
  5. Step 5: Solve for x
    x = 6,099,753,181.54/89,721.54
  6. Step 6: Final answer
    x = 67,985.38

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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.