Home / 42,749.43-64,131.04-13,167.26

Finding the Fourth Proportional to 42,749.43, 64,131.04 and 13,167.26

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Solution

The fourth proportional to 42,749.43, 64,131.04 and 13,167.26 is: 19,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749.43 : 64,131.04 = 13,167.26 : x
  2. Step 2: Convert to fraction form
    42,749.43/64,131.04 = 13,167.26/x
  3. Step 3: Cross multiply
    42,749.43x = 64,131.04 × 13,167.26
  4. Step 4: Simplify right side
    42,749.43x = 844,430,077.75
  5. Step 5: Solve for x
    x = 844,430,077.75/42,749.43
  6. Step 6: Final answer
    x = 19,753.01

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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.