Home / 80,430.08-120,566.70-38,298.86

Finding the Fourth Proportional to 80,430.08, 120,566.70 and 38,298.86

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Solution

The fourth proportional to 80,430.08, 120,566.70 and 38,298.86 is: 57,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,430.08 : 120,566.70 = 38,298.86 : x
  2. Step 2: Convert to fraction form
    80,430.08/120,566.70 = 38,298.86/x
  3. Step 3: Cross multiply
    80,430.08x = 120,566.70 × 38,298.86
  4. Step 4: Simplify right side
    80,430.08x = 4,617,567,163.96
  5. Step 5: Solve for x
    x = 4,617,567,163.96/80,430.08
  6. Step 6: Final answer
    x = 57,410.95

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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.