Home / 57,834.08-79,787.40-38,977.28

Finding the Fourth Proportional to 57,834.08, 79,787.40 and 38,977.28

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Solution

The fourth proportional to 57,834.08, 79,787.40 and 38,977.28 is: 53,772.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,834.08 : 79,787.40 = 38,977.28 : x
  2. Step 2: Convert to fraction form
    57,834.08/79,787.40 = 38,977.28/x
  3. Step 3: Cross multiply
    57,834.08x = 79,787.40 × 38,977.28
  4. Step 4: Simplify right side
    57,834.08x = 3,109,895,830.27
  5. Step 5: Solve for x
    x = 3,109,895,830.27/57,834.08
  6. Step 6: Final answer
    x = 53,772.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.