Home / 51,916.88-77,878.20-14,477

Finding the Fourth Proportional to 51,916.88, 77,878.20 and 14,477

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Solution

The fourth proportional to 51,916.88, 77,878.20 and 14,477 is: 21,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,916.88 : 77,878.20 = 14,477 : x
  2. Step 2: Convert to fraction form
    51,916.88/77,878.20 = 14,477/x
  3. Step 3: Cross multiply
    51,916.88x = 77,878.20 × 14,477
  4. Step 4: Simplify right side
    51,916.88x = 1,127,442,701.40
  5. Step 5: Solve for x
    x = 1,127,442,701.40/51,916.88
  6. Step 6: Final answer
    x = 21,716.30

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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.