Home / 72,170.46-99,608.06-53,077.95

Finding the Fourth Proportional to 72,170.46, 99,608.06 and 53,077.95

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Solution

The fourth proportional to 72,170.46, 99,608.06 and 53,077.95 is: 73,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,170.46 : 99,608.06 = 53,077.95 : x
  2. Step 2: Convert to fraction form
    72,170.46/99,608.06 = 53,077.95/x
  3. Step 3: Cross multiply
    72,170.46x = 99,608.06 × 53,077.95
  4. Step 4: Simplify right side
    72,170.46x = 5,286,991,760.97
  5. Step 5: Solve for x
    x = 5,286,991,760.97/72,170.46
  6. Step 6: Final answer
    x = 73,257.01

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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.