Home / 89,991.40-134,985.18-27,660.52

Finding the Fourth Proportional to 89,991.40, 134,985.18 and 27,660.52

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Solution

The fourth proportional to 89,991.40, 134,985.18 and 27,660.52 is: 41,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,991.40 : 134,985.18 = 27,660.52 : x
  2. Step 2: Convert to fraction form
    89,991.40/134,985.18 = 27,660.52/x
  3. Step 3: Cross multiply
    89,991.40x = 134,985.18 × 27,660.52
  4. Step 4: Simplify right side
    89,991.40x = 3,733,760,271.09
  5. Step 5: Solve for x
    x = 3,733,760,271.09/89,991.40
  6. Step 6: Final answer
    x = 41,490.19

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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.