Home / 43,126.36-64,685.28-13,543.40

Finding the Fourth Proportional to 43,126.36, 64,685.28 and 13,543.40

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Solution

The fourth proportional to 43,126.36, 64,685.28 and 13,543.40 is: 20,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,126.36 : 64,685.28 = 13,543.40 : x
  2. Step 2: Convert to fraction form
    43,126.36/64,685.28 = 13,543.40/x
  3. Step 3: Cross multiply
    43,126.36x = 64,685.28 × 13,543.40
  4. Step 4: Simplify right side
    43,126.36x = 876,058,833.65
  5. Step 5: Solve for x
    x = 876,058,833.65/43,126.36
  6. Step 6: Final answer
    x = 20,313.77

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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.