Home / 77,651.07-116,479.19-21,486.47

Finding the Fourth Proportional to 77,651.07, 116,479.19 and 21,486.47

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Solution

The fourth proportional to 77,651.07, 116,479.19 and 21,486.47 is: 32,230.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,651.07 : 116,479.19 = 21,486.47 : x
  2. Step 2: Convert to fraction form
    77,651.07/116,479.19 = 21,486.47/x
  3. Step 3: Cross multiply
    77,651.07x = 116,479.19 × 21,486.47
  4. Step 4: Simplify right side
    77,651.07x = 2,502,725,931.73
  5. Step 5: Solve for x
    x = 2,502,725,931.73/77,651.07
  6. Step 6: Final answer
    x = 32,230.41

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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.