Home / 43,156.26-64,741.77-19,784.70

Finding the Fourth Proportional to 43,156.26, 64,741.77 and 19,784.70

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Solution

The fourth proportional to 43,156.26, 64,741.77 and 19,784.70 is: 29,680.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,156.26 : 64,741.77 = 19,784.70 : x
  2. Step 2: Convert to fraction form
    43,156.26/64,741.77 = 19,784.70/x
  3. Step 3: Cross multiply
    43,156.26x = 64,741.77 × 19,784.70
  4. Step 4: Simplify right side
    43,156.26x = 1,280,896,496.92
  5. Step 5: Solve for x
    x = 1,280,896,496.92/43,156.26
  6. Step 6: Final answer
    x = 29,680.43

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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.