Home / 51,172.89-70,642.31-36,077.85

Finding the Fourth Proportional to 51,172.89, 70,642.31 and 36,077.85

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Solution

The fourth proportional to 51,172.89, 70,642.31 and 36,077.85 is: 49,804.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.89 : 70,642.31 = 36,077.85 : x
  2. Step 2: Convert to fraction form
    51,172.89/70,642.31 = 36,077.85/x
  3. Step 3: Cross multiply
    51,172.89x = 70,642.31 × 36,077.85
  4. Step 4: Simplify right side
    51,172.89x = 2,548,622,483.44
  5. Step 5: Solve for x
    x = 2,548,622,483.44/51,172.89
  6. Step 6: Final answer
    x = 49,804.15

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1.5x scale

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.