Home / 51,385.26-70,923.10-31,237.88

Finding the Fourth Proportional to 51,385.26, 70,923.10 and 31,237.88

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Solution

The fourth proportional to 51,385.26, 70,923.10 and 31,237.88 is: 43,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.26 : 70,923.10 = 31,237.88 : x
  2. Step 2: Convert to fraction form
    51,385.26/70,923.10 = 31,237.88/x
  3. Step 3: Cross multiply
    51,385.26x = 70,923.10 × 31,237.88
  4. Step 4: Simplify right side
    51,385.26x = 2,215,487,287.03
  5. Step 5: Solve for x
    x = 2,215,487,287.03/51,385.26
  6. Step 6: Final answer
    x = 43,115.23

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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.