Home / 87,613.29-120,899.52-53,607.67

Finding the Fourth Proportional to 87,613.29, 120,899.52 and 53,607.67

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Solution

The fourth proportional to 87,613.29, 120,899.52 and 53,607.67 is: 73,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,613.29 : 120,899.52 = 53,607.67 : x
  2. Step 2: Convert to fraction form
    87,613.29/120,899.52 = 53,607.67/x
  3. Step 3: Cross multiply
    87,613.29x = 120,899.52 × 53,607.67
  4. Step 4: Simplify right side
    87,613.29x = 6,481,141,571.32
  5. Step 5: Solve for x
    x = 6,481,141,571.32/87,613.29
  6. Step 6: Final answer
    x = 73,974.41

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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.