Home / 51,180.08-70,632.84-28,828.40

Finding the Fourth Proportional to 51,180.08, 70,632.84 and 28,828.40

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Solution

The fourth proportional to 51,180.08, 70,632.84 and 28,828.40 is: 39,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,180.08 : 70,632.84 = 28,828.40 : x
  2. Step 2: Convert to fraction form
    51,180.08/70,632.84 = 28,828.40/x
  3. Step 3: Cross multiply
    51,180.08x = 70,632.84 × 28,828.40
  4. Step 4: Simplify right side
    51,180.08x = 2,036,231,764.66
  5. Step 5: Solve for x
    x = 2,036,231,764.66/51,180.08
  6. Step 6: Final answer
    x = 39,785.63

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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.