Home / 120,020.28-180,030.33-35,778.30

Finding the Fourth Proportional to 120,020.28, 180,030.33 and 35,778.30

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Solution

The fourth proportional to 120,020.28, 180,030.33 and 35,778.30 is: 53,667.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,020.28 : 180,030.33 = 35,778.30 : x
  2. Step 2: Convert to fraction form
    120,020.28/180,030.33 = 35,778.30/x
  3. Step 3: Cross multiply
    120,020.28x = 180,030.33 × 35,778.30
  4. Step 4: Simplify right side
    120,020.28x = 6,441,179,155.84
  5. Step 5: Solve for x
    x = 6,441,179,155.84/120,020.28
  6. Step 6: Final answer
    x = 53,667.42

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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.