Home / 51,081.83-70,491.58-28,420.86

Finding the Fourth Proportional to 51,081.83, 70,491.58 and 28,420.86

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Solution

The fourth proportional to 51,081.83, 70,491.58 and 28,420.86 is: 39,220.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,081.83 : 70,491.58 = 28,420.86 : x
  2. Step 2: Convert to fraction form
    51,081.83/70,491.58 = 28,420.86/x
  3. Step 3: Cross multiply
    51,081.83x = 70,491.58 × 28,420.86
  4. Step 4: Simplify right side
    51,081.83x = 2,003,431,326.36
  5. Step 5: Solve for x
    x = 2,003,431,326.36/51,081.83
  6. Step 6: Final answer
    x = 39,220.04

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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.