Home / 77,625.69-116,438.40-21,465.66

Finding the Fourth Proportional to 77,625.69, 116,438.40 and 21,465.66

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Solution

The fourth proportional to 77,625.69, 116,438.40 and 21,465.66 is: 32,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,625.69 : 116,438.40 = 21,465.66 : x
  2. Step 2: Convert to fraction form
    77,625.69/116,438.40 = 21,465.66/x
  3. Step 3: Cross multiply
    77,625.69x = 116,438.40 × 21,465.66
  4. Step 4: Simplify right side
    77,625.69x = 2,499,427,105.34
  5. Step 5: Solve for x
    x = 2,499,427,105.34/77,625.69
  6. Step 6: Final answer
    x = 32,198.45

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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.