Home / 80,130.06-120,130.29-33,417.90

Finding the Fourth Proportional to 80,130.06, 120,130.29 and 33,417.90

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Solution

The fourth proportional to 80,130.06, 120,130.29 and 33,417.90 is: 50,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,130.06 : 120,130.29 = 33,417.90 : x
  2. Step 2: Convert to fraction form
    80,130.06/120,130.29 = 33,417.90/x
  3. Step 3: Cross multiply
    80,130.06x = 120,130.29 × 33,417.90
  4. Step 4: Simplify right side
    80,130.06x = 4,014,502,018.19
  5. Step 5: Solve for x
    x = 4,014,502,018.19/80,130.06
  6. Step 6: Final answer
    x = 50,099.83

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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.