Home / 69,435.55-95,820.78-39,219.31

Finding the Fourth Proportional to 69,435.55, 95,820.78 and 39,219.31

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Solution

The fourth proportional to 69,435.55, 95,820.78 and 39,219.31 is: 54,122.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,435.55 : 95,820.78 = 39,219.31 : x
  2. Step 2: Convert to fraction form
    69,435.55/95,820.78 = 39,219.31/x
  3. Step 3: Cross multiply
    69,435.55x = 95,820.78 × 39,219.31
  4. Step 4: Simplify right side
    69,435.55x = 3,758,024,875.26
  5. Step 5: Solve for x
    x = 3,758,024,875.26/69,435.55
  6. Step 6: Final answer
    x = 54,122.49

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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.