Home / 51,977.40-77,916.96-47,355

Finding the Fourth Proportional to 51,977.40, 77,916.96 and 47,355

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Solution

The fourth proportional to 51,977.40, 77,916.96 and 47,355 is: 70,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,977.40 : 77,916.96 = 47,355 : x
  2. Step 2: Convert to fraction form
    51,977.40/77,916.96 = 47,355/x
  3. Step 3: Cross multiply
    51,977.40x = 77,916.96 × 47,355
  4. Step 4: Simplify right side
    51,977.40x = 3,689,757,640.80
  5. Step 5: Solve for x
    x = 3,689,757,640.80/51,977.40
  6. Step 6: Final answer
    x = 70,987.73

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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.