Home / 89,965.18-134,857.45-30,760.35

Finding the Fourth Proportional to 89,965.18, 134,857.45 and 30,760.35

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Solution

The fourth proportional to 89,965.18, 134,857.45 and 30,760.35 is: 46,109.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,965.18 : 134,857.45 = 30,760.35 : x
  2. Step 2: Convert to fraction form
    89,965.18/134,857.45 = 30,760.35/x
  3. Step 3: Cross multiply
    89,965.18x = 134,857.45 × 30,760.35
  4. Step 4: Simplify right side
    89,965.18x = 4,148,262,362.11
  5. Step 5: Solve for x
    x = 4,148,262,362.11/89,965.18
  6. Step 6: Final answer
    x = 46,109.64

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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.