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Finding the Fourth Proportional to 120,027.51, 180,041.13 and 36,921.51

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Solution

The fourth proportional to 120,027.51, 180,041.13 and 36,921.51 is: 55,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,027.51 : 180,041.13 = 36,921.51 : x
  2. Step 2: Convert to fraction form
    120,027.51/180,041.13 = 36,921.51/x
  3. Step 3: Cross multiply
    120,027.51x = 180,041.13 × 36,921.51
  4. Step 4: Simplify right side
    120,027.51x = 6,647,390,381.71
  5. Step 5: Solve for x
    x = 6,647,390,381.71/120,027.51
  6. Step 6: Final answer
    x = 55,382.22

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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.