Home / 51,438.58-70,987.26-30,217.66

Finding the Fourth Proportional to 51,438.58, 70,987.26 and 30,217.66

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Solution

The fourth proportional to 51,438.58, 70,987.26 and 30,217.66 is: 41,701.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,438.58 : 70,987.26 = 30,217.66 : x
  2. Step 2: Convert to fraction form
    51,438.58/70,987.26 = 30,217.66/x
  3. Step 3: Cross multiply
    51,438.58x = 70,987.26 × 30,217.66
  4. Step 4: Simplify right side
    51,438.58x = 2,145,068,887.01
  5. Step 5: Solve for x
    x = 2,145,068,887.01/51,438.58
  6. Step 6: Final answer
    x = 41,701.56

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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.