Home / 120,543.48-180,814.70-30,587.04

Finding the Fourth Proportional to 120,543.48, 180,814.70 and 30,587.04

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Solution

The fourth proportional to 120,543.48, 180,814.70 and 30,587.04 is: 45,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,543.48 : 180,814.70 = 30,587.04 : x
  2. Step 2: Convert to fraction form
    120,543.48/180,814.70 = 30,587.04/x
  3. Step 3: Cross multiply
    120,543.48x = 180,814.70 × 30,587.04
  4. Step 4: Simplify right side
    120,543.48x = 5,530,586,308.55
  5. Step 5: Solve for x
    x = 5,530,586,308.55/120,543.48
  6. Step 6: Final answer
    x = 45,880.43

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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.