Home / 86,305.50-129,165.03-53,008.02

Finding the Fourth Proportional to 86,305.50, 129,165.03 and 53,008.02

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Solution

The fourth proportional to 86,305.50, 129,165.03 and 53,008.02 is: 79,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305.50 : 129,165.03 = 53,008.02 : x
  2. Step 2: Convert to fraction form
    86,305.50/129,165.03 = 53,008.02/x
  3. Step 3: Cross multiply
    86,305.50x = 129,165.03 × 53,008.02
  4. Step 4: Simplify right side
    86,305.50x = 6,846,782,493.54
  5. Step 5: Solve for x
    x = 6,846,782,493.54/86,305.50
  6. Step 6: Final answer
    x = 79,331.94

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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.