Home / 68,649.36-94,735.65-38,434.56

Finding the Fourth Proportional to 68,649.36, 94,735.65 and 38,434.56

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Solution

The fourth proportional to 68,649.36, 94,735.65 and 38,434.56 is: 53,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,649.36 : 94,735.65 = 38,434.56 : x
  2. Step 2: Convert to fraction form
    68,649.36/94,735.65 = 38,434.56/x
  3. Step 3: Cross multiply
    68,649.36x = 94,735.65 × 38,434.56
  4. Step 4: Simplify right side
    68,649.36x = 3,641,123,024.06
  5. Step 5: Solve for x
    x = 3,641,123,024.06/68,649.36
  6. Step 6: Final answer
    x = 53,039.43

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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.