Home / 51,321.69-70,818.93-28,658.88

Finding the Fourth Proportional to 51,321.69, 70,818.93 and 28,658.88

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Solution

The fourth proportional to 51,321.69, 70,818.93 and 28,658.88 is: 39,546.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,321.69 : 70,818.93 = 28,658.88 : x
  2. Step 2: Convert to fraction form
    51,321.69/70,818.93 = 28,658.88/x
  3. Step 3: Cross multiply
    51,321.69x = 70,818.93 × 28,658.88
  4. Step 4: Simplify right side
    51,321.69x = 2,029,591,216.60
  5. Step 5: Solve for x
    x = 2,029,591,216.60/51,321.69
  6. Step 6: Final answer
    x = 39,546.46

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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.