Home / 42,099.45-63,148.64-12,114.48

Finding the Fourth Proportional to 42,099.45, 63,148.64 and 12,114.48

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Solution

The fourth proportional to 42,099.45, 63,148.64 and 12,114.48 is: 18,171.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,099.45 : 63,148.64 = 12,114.48 : x
  2. Step 2: Convert to fraction form
    42,099.45/63,148.64 = 12,114.48/x
  3. Step 3: Cross multiply
    42,099.45x = 63,148.64 × 12,114.48
  4. Step 4: Simplify right side
    42,099.45x = 765,012,875.73
  5. Step 5: Solve for x
    x = 765,012,875.73/42,099.45
  6. Step 6: Final answer
    x = 18,171.56

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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.