Home / 51,128.48-70,558.02-28,468.46

Finding the Fourth Proportional to 51,128.48, 70,558.02 and 28,468.46

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Solution

The fourth proportional to 51,128.48, 70,558.02 and 28,468.46 is: 39,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.48 : 70,558.02 = 28,468.46 : x
  2. Step 2: Convert to fraction form
    51,128.48/70,558.02 = 28,468.46/x
  3. Step 3: Cross multiply
    51,128.48x = 70,558.02 × 28,468.46
  4. Step 4: Simplify right side
    51,128.48x = 2,008,678,170.05
  5. Step 5: Solve for x
    x = 2,008,678,170.05/51,128.48
  6. Step 6: Final answer
    x = 39,286.87

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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.