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Finding the Fourth Proportional to 120,045.44, 180,036.48 and 35,782.88

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Solution

The fourth proportional to 120,045.44, 180,036.48 and 35,782.88 is: 53,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,045.44 : 180,036.48 = 35,782.88 : x
  2. Step 2: Convert to fraction form
    120,045.44/180,036.48 = 35,782.88/x
  3. Step 3: Cross multiply
    120,045.44x = 180,036.48 × 35,782.88
  4. Step 4: Simplify right side
    120,045.44x = 6,442,223,759.46
  5. Step 5: Solve for x
    x = 6,442,223,759.46/120,045.44
  6. Step 6: Final answer
    x = 53,664.88

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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.