Home / 43,151.26-64,734.28-19,779.70

Finding the Fourth Proportional to 43,151.26, 64,734.28 and 19,779.70

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Solution

The fourth proportional to 43,151.26, 64,734.28 and 19,779.70 is: 29,672.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,151.26 : 64,734.28 = 19,779.70 : x
  2. Step 2: Convert to fraction form
    43,151.26/64,734.28 = 19,779.70/x
  3. Step 3: Cross multiply
    43,151.26x = 64,734.28 × 19,779.70
  4. Step 4: Simplify right side
    43,151.26x = 1,280,424,638.12
  5. Step 5: Solve for x
    x = 1,280,424,638.12/43,151.26
  6. Step 6: Final answer
    x = 29,672.94

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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.