Home / 51,086.86-70,499.19-28,730.86

Finding the Fourth Proportional to 51,086.86, 70,499.19 and 28,730.86

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Solution

The fourth proportional to 51,086.86, 70,499.19 and 28,730.86 is: 39,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,086.86 : 70,499.19 = 28,730.86 : x
  2. Step 2: Convert to fraction form
    51,086.86/70,499.19 = 28,730.86/x
  3. Step 3: Cross multiply
    51,086.86x = 70,499.19 × 28,730.86
  4. Step 4: Simplify right side
    51,086.86x = 2,025,502,358.00
  5. Step 5: Solve for x
    x = 2,025,502,358.00/51,086.86
  6. Step 6: Final answer
    x = 39,648.21

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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.