Home / 51,640.02-77,450.71-13,689.54

Finding the Fourth Proportional to 51,640.02, 77,450.71 and 13,689.54

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Solution

The fourth proportional to 51,640.02, 77,450.71 and 13,689.54 is: 20,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,640.02 : 77,450.71 = 13,689.54 : x
  2. Step 2: Convert to fraction form
    51,640.02/77,450.71 = 13,689.54/x
  3. Step 3: Cross multiply
    51,640.02x = 77,450.71 × 13,689.54
  4. Step 4: Simplify right side
    51,640.02x = 1,060,264,592.57
  5. Step 5: Solve for x
    x = 1,060,264,592.57/51,640.02
  6. Step 6: Final answer
    x = 20,531.84

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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.