Home / 120,027.55-180,041.38-31,280.83

Finding the Fourth Proportional to 120,027.55, 180,041.38 and 31,280.83

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Solution

The fourth proportional to 120,027.55, 180,041.38 and 31,280.83 is: 46,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,027.55 : 180,041.38 = 31,280.83 : x
  2. Step 2: Convert to fraction form
    120,027.55/180,041.38 = 31,280.83/x
  3. Step 3: Cross multiply
    120,027.55x = 180,041.38 × 31,280.83
  4. Step 4: Simplify right side
    120,027.55x = 5,631,843,800.75
  5. Step 5: Solve for x
    x = 5,631,843,800.75/120,027.55
  6. Step 6: Final answer
    x = 46,921.26

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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.