Home / 49,865.50-75,142.30-45,185.32

Finding the Fourth Proportional to 49,865.50, 75,142.30 and 45,185.32

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Solution

The fourth proportional to 49,865.50, 75,142.30 and 45,185.32 is: 68,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,865.50 : 75,142.30 = 45,185.32 : x
  2. Step 2: Convert to fraction form
    49,865.50/75,142.30 = 45,185.32/x
  3. Step 3: Cross multiply
    49,865.50x = 75,142.30 × 45,185.32
  4. Step 4: Simplify right side
    49,865.50x = 3,395,328,871.04
  5. Step 5: Solve for x
    x = 3,395,328,871.04/49,865.50
  6. Step 6: Final answer
    x = 68,089.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.