Home / 87,419.04-120,653.76-51,606.72

Finding the Fourth Proportional to 87,419.04, 120,653.76 and 51,606.72

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Solution

The fourth proportional to 87,419.04, 120,653.76 and 51,606.72 is: 71,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,419.04 : 120,653.76 = 51,606.72 : x
  2. Step 2: Convert to fraction form
    87,419.04/120,653.76 = 51,606.72/x
  3. Step 3: Cross multiply
    87,419.04x = 120,653.76 × 51,606.72
  4. Step 4: Simplify right side
    87,419.04x = 6,226,544,809.27
  5. Step 5: Solve for x
    x = 6,226,544,809.27/87,419.04
  6. Step 6: Final answer
    x = 71,226.41

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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.