Home / 80,378.15-120,370.37-56,627.33

Finding the Fourth Proportional to 80,378.15, 120,370.37 and 56,627.33

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Solution

The fourth proportional to 80,378.15, 120,370.37 and 56,627.33 is: 84,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,378.15 : 120,370.37 = 56,627.33 : x
  2. Step 2: Convert to fraction form
    80,378.15/120,370.37 = 56,627.33/x
  3. Step 3: Cross multiply
    80,378.15x = 120,370.37 × 56,627.33
  4. Step 4: Simplify right side
    80,378.15x = 6,816,251,779.22
  5. Step 5: Solve for x
    x = 6,816,251,779.22/80,378.15
  6. Step 6: Final answer
    x = 84,802.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.