Home / 81,556.47-112,546.58-47,584.71

Finding the Fourth Proportional to 81,556.47, 112,546.58 and 47,584.71

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Solution

The fourth proportional to 81,556.47, 112,546.58 and 47,584.71 is: 65,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556.47 : 112,546.58 = 47,584.71 : x
  2. Step 2: Convert to fraction form
    81,556.47/112,546.58 = 47,584.71/x
  3. Step 3: Cross multiply
    81,556.47x = 112,546.58 × 47,584.71
  4. Step 4: Simplify right side
    81,556.47x = 5,355,496,132.87
  5. Step 5: Solve for x
    x = 5,355,496,132.87/81,556.47
  6. Step 6: Final answer
    x = 65,666.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.