Home / 77,715.79-116,561.26-27,786.58

Finding the Fourth Proportional to 77,715.79, 116,561.26 and 27,786.58

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Solution

The fourth proportional to 77,715.79, 116,561.26 and 27,786.58 is: 41,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,715.79 : 116,561.26 = 27,786.58 : x
  2. Step 2: Convert to fraction form
    77,715.79/116,561.26 = 27,786.58/x
  3. Step 3: Cross multiply
    77,715.79x = 116,561.26 × 27,786.58
  4. Step 4: Simplify right side
    77,715.79x = 3,238,838,054.15
  5. Step 5: Solve for x
    x = 3,238,838,054.15/77,715.79
  6. Step 6: Final answer
    x = 41,675.42

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1.5x scale

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.