Home / 42,087.52-63,137.52-19,922.40

Finding the Fourth Proportional to 42,087.52, 63,137.52 and 19,922.40

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Solution

The fourth proportional to 42,087.52, 63,137.52 and 19,922.40 is: 29,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,087.52 : 63,137.52 = 19,922.40 : x
  2. Step 2: Convert to fraction form
    42,087.52/63,137.52 = 19,922.40/x
  3. Step 3: Cross multiply
    42,087.52x = 63,137.52 × 19,922.40
  4. Step 4: Simplify right side
    42,087.52x = 1,257,850,928.45
  5. Step 5: Solve for x
    x = 1,257,850,928.45/42,087.52
  6. Step 6: Final answer
    x = 29,886.55

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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.