Home / 89,781.16-134,710.64-48,179.56

Finding the Fourth Proportional to 89,781.16, 134,710.64 and 48,179.56

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Solution

The fourth proportional to 89,781.16, 134,710.64 and 48,179.56 is: 72,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,781.16 : 134,710.64 = 48,179.56 : x
  2. Step 2: Convert to fraction form
    89,781.16/134,710.64 = 48,179.56/x
  3. Step 3: Cross multiply
    89,781.16x = 134,710.64 × 48,179.56
  4. Step 4: Simplify right side
    89,781.16x = 6,490,299,362.52
  5. Step 5: Solve for x
    x = 6,490,299,362.52/89,781.16
  6. Step 6: Final answer
    x = 72,290.22

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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.