Home / 74,986.05-112,507.15-38,940.04

Finding the Fourth Proportional to 74,986.05, 112,507.15 and 38,940.04

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Solution

The fourth proportional to 74,986.05, 112,507.15 and 38,940.04 is: 58,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,986.05 : 112,507.15 = 38,940.04 : x
  2. Step 2: Convert to fraction form
    74,986.05/112,507.15 = 38,940.04/x
  3. Step 3: Cross multiply
    74,986.05x = 112,507.15 × 38,940.04
  4. Step 4: Simplify right side
    74,986.05x = 4,381,032,261.40
  5. Step 5: Solve for x
    x = 4,381,032,261.40/74,986.05
  6. Step 6: Final answer
    x = 58,424.63

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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.