Home / 89,988.61-134,930.67-30,808.39

Finding the Fourth Proportional to 89,988.61, 134,930.67 and 30,808.39

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Solution

The fourth proportional to 89,988.61, 134,930.67 and 30,808.39 is: 46,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,988.61 : 134,930.67 = 30,808.39 : x
  2. Step 2: Convert to fraction form
    89,988.61/134,930.67 = 30,808.39/x
  3. Step 3: Cross multiply
    89,988.61x = 134,930.67 × 30,808.39
  4. Step 4: Simplify right side
    89,988.61x = 4,156,996,704.32
  5. Step 5: Solve for x
    x = 4,156,996,704.32/89,988.61
  6. Step 6: Final answer
    x = 46,194.70

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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.