Home / 89,885.06-134,827.62-30,721.28

Finding the Fourth Proportional to 89,885.06, 134,827.62 and 30,721.28

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Solution

The fourth proportional to 89,885.06, 134,827.62 and 30,721.28 is: 46,081.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,885.06 : 134,827.62 = 30,721.28 : x
  2. Step 2: Convert to fraction form
    89,885.06/134,827.62 = 30,721.28/x
  3. Step 3: Cross multiply
    89,885.06x = 134,827.62 × 30,721.28
  4. Step 4: Simplify right side
    89,885.06x = 4,142,077,065.75
  5. Step 5: Solve for x
    x = 4,142,077,065.75/89,885.06
  6. Step 6: Final answer
    x = 46,081.93

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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.