Home / 51,301.64-70,776.78-31,150.88

Finding the Fourth Proportional to 51,301.64, 70,776.78 and 31,150.88

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Solution

The fourth proportional to 51,301.64, 70,776.78 and 31,150.88 is: 42,976.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,301.64 : 70,776.78 = 31,150.88 : x
  2. Step 2: Convert to fraction form
    51,301.64/70,776.78 = 31,150.88/x
  3. Step 3: Cross multiply
    51,301.64x = 70,776.78 × 31,150.88
  4. Step 4: Simplify right side
    51,301.64x = 2,204,758,980.57
  5. Step 5: Solve for x
    x = 2,204,758,980.57/51,301.64
  6. Step 6: Final answer
    x = 42,976.38

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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.