Home / 76,088.68-114,058.82-31,728.11

Finding the Fourth Proportional to 76,088.68, 114,058.82 and 31,728.11

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Solution

The fourth proportional to 76,088.68, 114,058.82 and 31,728.11 is: 47,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,088.68 : 114,058.82 = 31,728.11 : x
  2. Step 2: Convert to fraction form
    76,088.68/114,058.82 = 31,728.11/x
  3. Step 3: Cross multiply
    76,088.68x = 114,058.82 × 31,728.11
  4. Step 4: Simplify right side
    76,088.68x = 3,618,870,296.46
  5. Step 5: Solve for x
    x = 3,618,870,296.46/76,088.68
  6. Step 6: Final answer
    x = 47,561.22

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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.