Home / 52,431.68-78,647.34-21,266.84

Finding the Fourth Proportional to 52,431.68, 78,647.34 and 21,266.84

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Solution

The fourth proportional to 52,431.68, 78,647.34 and 21,266.84 is: 31,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,431.68 : 78,647.34 = 21,266.84 : x
  2. Step 2: Convert to fraction form
    52,431.68/78,647.34 = 21,266.84/x
  3. Step 3: Cross multiply
    52,431.68x = 78,647.34 × 21,266.84
  4. Step 4: Simplify right side
    52,431.68x = 1,672,580,396.21
  5. Step 5: Solve for x
    x = 1,672,580,396.21/52,431.68
  6. Step 6: Final answer
    x = 31,900.19

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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.