Home / 87,499.29-120,758.09-53,530.40

Finding the Fourth Proportional to 87,499.29, 120,758.09 and 53,530.40

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Solution

The fourth proportional to 87,499.29, 120,758.09 and 53,530.40 is: 73,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,499.29 : 120,758.09 = 53,530.40 : x
  2. Step 2: Convert to fraction form
    87,499.29/120,758.09 = 53,530.40/x
  3. Step 3: Cross multiply
    87,499.29x = 120,758.09 × 53,530.40
  4. Step 4: Simplify right side
    87,499.29x = 6,464,228,860.94
  5. Step 5: Solve for x
    x = 6,464,228,860.94/87,499.29
  6. Step 6: Final answer
    x = 73,877.50

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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.