Home / 71,592.16-98,795.46-39,760.78

Finding the Fourth Proportional to 71,592.16, 98,795.46 and 39,760.78

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Solution

The fourth proportional to 71,592.16, 98,795.46 and 39,760.78 is: 54,868.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,592.16 : 98,795.46 = 39,760.78 : x
  2. Step 2: Convert to fraction form
    71,592.16/98,795.46 = 39,760.78/x
  3. Step 3: Cross multiply
    71,592.16x = 98,795.46 × 39,760.78
  4. Step 4: Simplify right side
    71,592.16x = 3,928,184,550.06
  5. Step 5: Solve for x
    x = 3,928,184,550.06/71,592.16
  6. Step 6: Final answer
    x = 54,868.92

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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.