Home / 77,767.20-116,655.66-31,018.86

Finding the Fourth Proportional to 77,767.20, 116,655.66 and 31,018.86

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Solution

The fourth proportional to 77,767.20, 116,655.66 and 31,018.86 is: 46,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,767.20 : 116,655.66 = 31,018.86 : x
  2. Step 2: Convert to fraction form
    77,767.20/116,655.66 = 31,018.86/x
  3. Step 3: Cross multiply
    77,767.20x = 116,655.66 × 31,018.86
  4. Step 4: Simplify right side
    77,767.20x = 3,618,525,585.75
  5. Step 5: Solve for x
    x = 3,618,525,585.75/77,767.20
  6. Step 6: Final answer
    x = 46,530.23

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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.