Home / 50,779.10-70,077.74-28,120.56

Finding the Fourth Proportional to 50,779.10, 70,077.74 and 28,120.56

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Solution

The fourth proportional to 50,779.10, 70,077.74 and 28,120.56 is: 38,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,779.10 : 70,077.74 = 28,120.56 : x
  2. Step 2: Convert to fraction form
    50,779.10/70,077.74 = 28,120.56/x
  3. Step 3: Cross multiply
    50,779.10x = 70,077.74 × 28,120.56
  4. Step 4: Simplify right side
    50,779.10x = 1,970,625,151.73
  5. Step 5: Solve for x
    x = 1,970,625,151.73/50,779.10
  6. Step 6: Final answer
    x = 38,807.80

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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.