Home / 42,111.36-63,181.44-18,754.08

Finding the Fourth Proportional to 42,111.36, 63,181.44 and 18,754.08

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Solution

The fourth proportional to 42,111.36, 63,181.44 and 18,754.08 is: 28,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,111.36 : 63,181.44 = 18,754.08 : x
  2. Step 2: Convert to fraction form
    42,111.36/63,181.44 = 18,754.08/x
  3. Step 3: Cross multiply
    42,111.36x = 63,181.44 × 18,754.08
  4. Step 4: Simplify right side
    42,111.36x = 1,184,909,780.28
  5. Step 5: Solve for x
    x = 1,184,909,780.28/42,111.36
  6. Step 6: Final answer
    x = 28,137.53

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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.