Home / 87,394.82-120,614.10-53,423.19

Finding the Fourth Proportional to 87,394.82, 120,614.10 and 53,423.19

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Solution

The fourth proportional to 87,394.82, 120,614.10 and 53,423.19 is: 73,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,394.82 : 120,614.10 = 53,423.19 : x
  2. Step 2: Convert to fraction form
    87,394.82/120,614.10 = 53,423.19/x
  3. Step 3: Cross multiply
    87,394.82x = 120,614.10 × 53,423.19
  4. Step 4: Simplify right side
    87,394.82x = 6,443,590,307.30
  5. Step 5: Solve for x
    x = 6,443,590,307.30/87,394.82
  6. Step 6: Final answer
    x = 73,729.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.