Home / 55,725.61-83,588.11-13,605.91

Finding the Fourth Proportional to 55,725.61, 83,588.11 and 13,605.91

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Solution

The fourth proportional to 55,725.61, 83,588.11 and 13,605.91 is: 20,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,725.61 : 83,588.11 = 13,605.91 : x
  2. Step 2: Convert to fraction form
    55,725.61/83,588.11 = 13,605.91/x
  3. Step 3: Cross multiply
    55,725.61x = 83,588.11 × 13,605.91
  4. Step 4: Simplify right side
    55,725.61x = 1,137,292,301.73
  5. Step 5: Solve for x
    x = 1,137,292,301.73/55,725.61
  6. Step 6: Final answer
    x = 20,408.79

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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.