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Finding the Fourth Proportional to 42,401.06, 63,602.10 and 10,811.06

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Solution

The fourth proportional to 42,401.06, 63,602.10 and 10,811.06 is: 16,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,401.06 : 63,602.10 = 10,811.06 : x
  2. Step 2: Convert to fraction form
    42,401.06/63,602.10 = 10,811.06/x
  3. Step 3: Cross multiply
    42,401.06x = 63,602.10 × 10,811.06
  4. Step 4: Simplify right side
    42,401.06x = 687,606,119.23
  5. Step 5: Solve for x
    x = 687,606,119.23/42,401.06
  6. Step 6: Final answer
    x = 16,216.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.