Home / 51,385.51-70,923.44-31,238.13

Finding the Fourth Proportional to 51,385.51, 70,923.44 and 31,238.13

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Solution

The fourth proportional to 51,385.51, 70,923.44 and 31,238.13 is: 43,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.51 : 70,923.44 = 31,238.13 : x
  2. Step 2: Convert to fraction form
    51,385.51/70,923.44 = 31,238.13/x
  3. Step 3: Cross multiply
    51,385.51x = 70,923.44 × 31,238.13
  4. Step 4: Simplify right side
    51,385.51x = 2,215,515,362.25
  5. Step 5: Solve for x
    x = 2,215,515,362.25/51,385.51
  6. Step 6: Final answer
    x = 43,115.57

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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.