Home / 52,061.10-78,090.96-12,618.56

Finding the Fourth Proportional to 52,061.10, 78,090.96 and 12,618.56

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Solution

The fourth proportional to 52,061.10, 78,090.96 and 12,618.56 is: 18,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,061.10 : 78,090.96 = 12,618.56 : x
  2. Step 2: Convert to fraction form
    52,061.10/78,090.96 = 12,618.56/x
  3. Step 3: Cross multiply
    52,061.10x = 78,090.96 × 12,618.56
  4. Step 4: Simplify right side
    52,061.10x = 985,395,073.76
  5. Step 5: Solve for x
    x = 985,395,073.76/52,061.10
  6. Step 6: Final answer
    x = 18,927.67

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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.