Home / 51,439.41-70,999.56-31,310.42

Finding the Fourth Proportional to 51,439.41, 70,999.56 and 31,310.42

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Solution

The fourth proportional to 51,439.41, 70,999.56 and 31,310.42 is: 43,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,439.41 : 70,999.56 = 31,310.42 : x
  2. Step 2: Convert to fraction form
    51,439.41/70,999.56 = 31,310.42/x
  3. Step 3: Cross multiply
    51,439.41x = 70,999.56 × 31,310.42
  4. Step 4: Simplify right side
    51,439.41x = 2,223,025,688.42
  5. Step 5: Solve for x
    x = 2,223,025,688.42/51,439.41
  6. Step 6: Final answer
    x = 43,216.39

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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.