Home / 53,910.16-80,864.70-38,426.20

Finding the Fourth Proportional to 53,910.16, 80,864.70 and 38,426.20

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Solution

The fourth proportional to 53,910.16, 80,864.70 and 38,426.20 is: 57,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910.16 : 80,864.70 = 38,426.20 : x
  2. Step 2: Convert to fraction form
    53,910.16/80,864.70 = 38,426.20/x
  3. Step 3: Cross multiply
    53,910.16x = 80,864.70 × 38,426.20
  4. Step 4: Simplify right side
    53,910.16x = 3,107,323,135.14
  5. Step 5: Solve for x
    x = 3,107,323,135.14/53,910.16
  6. Step 6: Final answer
    x = 57,638.92

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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.