Home / 42,115.95-63,180.41-19,941.39

Finding the Fourth Proportional to 42,115.95, 63,180.41 and 19,941.39

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Solution

The fourth proportional to 42,115.95, 63,180.41 and 19,941.39 is: 29,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,115.95 : 63,180.41 = 19,941.39 : x
  2. Step 2: Convert to fraction form
    42,115.95/63,180.41 = 19,941.39/x
  3. Step 3: Cross multiply
    42,115.95x = 63,180.41 × 19,941.39
  4. Step 4: Simplify right side
    42,115.95x = 1,259,905,096.46
  5. Step 5: Solve for x
    x = 1,259,905,096.46/42,115.95
  6. Step 6: Final answer
    x = 29,915.15

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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.