Home / 83,831.23-115,658.76-47,528.78

Finding the Fourth Proportional to 83,831.23, 115,658.76 and 47,528.78

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Solution

The fourth proportional to 83,831.23, 115,658.76 and 47,528.78 is: 65,573.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,831.23 : 115,658.76 = 47,528.78 : x
  2. Step 2: Convert to fraction form
    83,831.23/115,658.76 = 47,528.78/x
  3. Step 3: Cross multiply
    83,831.23x = 115,658.76 × 47,528.78
  4. Step 4: Simplify right side
    83,831.23x = 5,497,119,759.11
  5. Step 5: Solve for x
    x = 5,497,119,759.11/83,831.23
  6. Step 6: Final answer
    x = 65,573.65

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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.