Home / 42,111.28-63,181.50-28,127.44

Finding the Fourth Proportional to 42,111.28, 63,181.50 and 28,127.44

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Solution

The fourth proportional to 42,111.28, 63,181.50 and 28,127.44 is: 42,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,111.28 : 63,181.50 = 28,127.44 : x
  2. Step 2: Convert to fraction form
    42,111.28/63,181.50 = 28,127.44/x
  3. Step 3: Cross multiply
    42,111.28x = 63,181.50 × 28,127.44
  4. Step 4: Simplify right side
    42,111.28x = 1,777,133,850.36
  5. Step 5: Solve for x
    x = 1,777,133,850.36/42,111.28
  6. Step 6: Final answer
    x = 42,200.90

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1.5x scale

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.