Home / 42,045.80-63,072.32-12,060.20

Finding the Fourth Proportional to 42,045.80, 63,072.32 and 12,060.20

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Solution

The fourth proportional to 42,045.80, 63,072.32 and 12,060.20 is: 18,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,045.80 : 63,072.32 = 12,060.20 : x
  2. Step 2: Convert to fraction form
    42,045.80/63,072.32 = 12,060.20/x
  3. Step 3: Cross multiply
    42,045.80x = 63,072.32 × 12,060.20
  4. Step 4: Simplify right side
    42,045.80x = 760,664,793.66
  5. Step 5: Solve for x
    x = 760,664,793.66/42,045.80
  6. Step 6: Final answer
    x = 18,091.34

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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.