Home / 81,775.43-112,833.54-47,777.35

Finding the Fourth Proportional to 81,775.43, 112,833.54 and 47,777.35

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Solution

The fourth proportional to 81,775.43, 112,833.54 and 47,777.35 is: 65,923.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,775.43 : 112,833.54 = 47,777.35 : x
  2. Step 2: Convert to fraction form
    81,775.43/112,833.54 = 47,777.35/x
  3. Step 3: Cross multiply
    81,775.43x = 112,833.54 × 47,777.35
  4. Step 4: Simplify right side
    81,775.43x = 5,390,887,011.35
  5. Step 5: Solve for x
    x = 5,390,887,011.35/81,775.43
  6. Step 6: Final answer
    x = 65,923.06

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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.