Home / 69,122.78-103,683.47-31,672.22

Finding the Fourth Proportional to 69,122.78, 103,683.47 and 31,672.22

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Solution

The fourth proportional to 69,122.78, 103,683.47 and 31,672.22 is: 47,508.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,122.78 : 103,683.47 = 31,672.22 : x
  2. Step 2: Convert to fraction form
    69,122.78/103,683.47 = 31,672.22/x
  3. Step 3: Cross multiply
    69,122.78x = 103,683.47 × 31,672.22
  4. Step 4: Simplify right side
    69,122.78x = 3,283,885,773.05
  5. Step 5: Solve for x
    x = 3,283,885,773.05/69,122.78
  6. Step 6: Final answer
    x = 47,508.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.