Home / 77,900.24-116,867.64-25,315.04

Finding the Fourth Proportional to 77,900.24, 116,867.64 and 25,315.04

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Solution

The fourth proportional to 77,900.24, 116,867.64 and 25,315.04 is: 37,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,900.24 : 116,867.64 = 25,315.04 : x
  2. Step 2: Convert to fraction form
    77,900.24/116,867.64 = 25,315.04/x
  3. Step 3: Cross multiply
    77,900.24x = 116,867.64 × 25,315.04
  4. Step 4: Simplify right side
    77,900.24x = 2,958,508,981.31
  5. Step 5: Solve for x
    x = 2,958,508,981.31/77,900.24
  6. Step 6: Final answer
    x = 37,978.18

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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.