Home / 51,393.77-70,919.48-31,247.85

Finding the Fourth Proportional to 51,393.77, 70,919.48 and 31,247.85

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Solution

The fourth proportional to 51,393.77, 70,919.48 and 31,247.85 is: 43,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,393.77 : 70,919.48 = 31,247.85 : x
  2. Step 2: Convert to fraction form
    51,393.77/70,919.48 = 31,247.85/x
  3. Step 3: Cross multiply
    51,393.77x = 70,919.48 × 31,247.85
  4. Step 4: Simplify right side
    51,393.77x = 2,216,081,617.19
  5. Step 5: Solve for x
    x = 2,216,081,617.19/51,393.77
  6. Step 6: Final answer
    x = 43,119.66

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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.