Home / 65,847.02-90,917.74-40,388.52

Finding the Fourth Proportional to 65,847.02, 90,917.74 and 40,388.52

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Solution

The fourth proportional to 65,847.02, 90,917.74 and 40,388.52 is: 55,766.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,847.02 : 90,917.74 = 40,388.52 : x
  2. Step 2: Convert to fraction form
    65,847.02/90,917.74 = 40,388.52/x
  3. Step 3: Cross multiply
    65,847.02x = 90,917.74 × 40,388.52
  4. Step 4: Simplify right side
    65,847.02x = 3,672,032,960.34
  5. Step 5: Solve for x
    x = 3,672,032,960.34/65,847.02
  6. Step 6: Final answer
    x = 55,766.12

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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.