Home / 52,250.48-78,322.10-20,647.74

Finding the Fourth Proportional to 52,250.48, 78,322.10 and 20,647.74

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Solution

The fourth proportional to 52,250.48, 78,322.10 and 20,647.74 is: 30,950.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,250.48 : 78,322.10 = 20,647.74 : x
  2. Step 2: Convert to fraction form
    52,250.48/78,322.10 = 20,647.74/x
  3. Step 3: Cross multiply
    52,250.48x = 78,322.10 × 20,647.74
  4. Step 4: Simplify right side
    52,250.48x = 1,617,174,253.82
  5. Step 5: Solve for x
    x = 1,617,174,253.82/52,250.48
  6. Step 6: Final answer
    x = 30,950.42

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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.