Home / 89,988.96-134,985.60-27,660

Finding the Fourth Proportional to 89,988.96, 134,985.60 and 27,660

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Solution

The fourth proportional to 89,988.96, 134,985.60 and 27,660 is: 41,490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,988.96 : 134,985.60 = 27,660 : x
  2. Step 2: Convert to fraction form
    89,988.96/134,985.60 = 27,660/x
  3. Step 3: Cross multiply
    89,988.96x = 134,985.60 × 27,660
  4. Step 4: Simplify right side
    89,988.96x = 3,733,701,696
  5. Step 5: Solve for x
    x = 3,733,701,696/89,988.96
  6. Step 6: Final answer
    x = 41,490.66

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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.