Home / 57,038.07-78,729.39-36,895.80

Finding the Fourth Proportional to 57,038.07, 78,729.39 and 36,895.80

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Solution

The fourth proportional to 57,038.07, 78,729.39 and 36,895.80 is: 50,927.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,038.07 : 78,729.39 = 36,895.80 : x
  2. Step 2: Convert to fraction form
    57,038.07/78,729.39 = 36,895.80/x
  3. Step 3: Cross multiply
    57,038.07x = 78,729.39 × 36,895.80
  4. Step 4: Simplify right side
    57,038.07x = 2,904,783,827.56
  5. Step 5: Solve for x
    x = 2,904,783,827.56/57,038.07
  6. Step 6: Final answer
    x = 50,927.11

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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.