Home / 88,133.72-121,624.88-47,847.56

Finding the Fourth Proportional to 88,133.72, 121,624.88 and 47,847.56

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Solution

The fourth proportional to 88,133.72, 121,624.88 and 47,847.56 is: 66,029.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,133.72 : 121,624.88 = 47,847.56 : x
  2. Step 2: Convert to fraction form
    88,133.72/121,624.88 = 47,847.56/x
  3. Step 3: Cross multiply
    88,133.72x = 121,624.88 × 47,847.56
  4. Step 4: Simplify right side
    88,133.72x = 5,819,453,743.29
  5. Step 5: Solve for x
    x = 5,819,453,743.29/88,133.72
  6. Step 6: Final answer
    x = 66,029.82

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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.