Home / 81,800.96-112,877.52-47,817.40

Finding the Fourth Proportional to 81,800.96, 112,877.52 and 47,817.40

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Solution

The fourth proportional to 81,800.96, 112,877.52 and 47,817.40 is: 65,983.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,800.96 : 112,877.52 = 47,817.40 : x
  2. Step 2: Convert to fraction form
    81,800.96/112,877.52 = 47,817.40/x
  3. Step 3: Cross multiply
    81,800.96x = 112,877.52 × 47,817.40
  4. Step 4: Simplify right side
    81,800.96x = 5,397,509,524.85
  5. Step 5: Solve for x
    x = 5,397,509,524.85/81,800.96
  6. Step 6: Final answer
    x = 65,983.45

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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.