Home / 120,025.89-180,048.02-35,779.61

Finding the Fourth Proportional to 120,025.89, 180,048.02 and 35,779.61

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Solution

The fourth proportional to 120,025.89, 180,048.02 and 35,779.61 is: 53,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,025.89 : 180,048.02 = 35,779.61 : x
  2. Step 2: Convert to fraction form
    120,025.89/180,048.02 = 35,779.61/x
  3. Step 3: Cross multiply
    120,025.89x = 180,048.02 × 35,779.61
  4. Step 4: Simplify right side
    120,025.89x = 6,442,047,936.87
  5. Step 5: Solve for x
    x = 6,442,047,936.87/120,025.89
  6. Step 6: Final answer
    x = 53,672.15

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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.