Home / 61,190.28-84,454.80-39,706.92

Finding the Fourth Proportional to 61,190.28, 84,454.80 and 39,706.92

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Solution

The fourth proportional to 61,190.28, 84,454.80 and 39,706.92 is: 54,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,190.28 : 84,454.80 = 39,706.92 : x
  2. Step 2: Convert to fraction form
    61,190.28/84,454.80 = 39,706.92/x
  3. Step 3: Cross multiply
    61,190.28x = 84,454.80 × 39,706.92
  4. Step 4: Simplify right side
    61,190.28x = 3,353,439,987.22
  5. Step 5: Solve for x
    x = 3,353,439,987.22/61,190.28
  6. Step 6: Final answer
    x = 54,803.48

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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.