Home / 52,428.57-78,676.67-19,145.85

Finding the Fourth Proportional to 52,428.57, 78,676.67 and 19,145.85

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Solution

The fourth proportional to 52,428.57, 78,676.67 and 19,145.85 is: 28,731.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,428.57 : 78,676.67 = 19,145.85 : x
  2. Step 2: Convert to fraction form
    52,428.57/78,676.67 = 19,145.85/x
  3. Step 3: Cross multiply
    52,428.57x = 78,676.67 × 19,145.85
  4. Step 4: Simplify right side
    52,428.57x = 1,506,331,233.21
  5. Step 5: Solve for x
    x = 1,506,331,233.21/52,428.57
  6. Step 6: Final answer
    x = 28,731.12

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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.