Home / 57,934.50-79,949.61-31,438.50

Finding the Fourth Proportional to 57,934.50, 79,949.61 and 31,438.50

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Solution

The fourth proportional to 57,934.50, 79,949.61 and 31,438.50 is: 43,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,934.50 : 79,949.61 = 31,438.50 : x
  2. Step 2: Convert to fraction form
    57,934.50/79,949.61 = 31,438.50/x
  3. Step 3: Cross multiply
    57,934.50x = 79,949.61 × 31,438.50
  4. Step 4: Simplify right side
    57,934.50x = 2,513,495,813.99
  5. Step 5: Solve for x
    x = 2,513,495,813.99/57,934.50
  6. Step 6: Final answer
    x = 43,385.13

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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.