Home / 53,165.10-79,758.45-18,108.30

Finding the Fourth Proportional to 53,165.10, 79,758.45 and 18,108.30

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Solution

The fourth proportional to 53,165.10, 79,758.45 and 18,108.30 is: 27,166.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,165.10 : 79,758.45 = 18,108.30 : x
  2. Step 2: Convert to fraction form
    53,165.10/79,758.45 = 18,108.30/x
  3. Step 3: Cross multiply
    53,165.10x = 79,758.45 × 18,108.30
  4. Step 4: Simplify right side
    53,165.10x = 1,444,289,940.14
  5. Step 5: Solve for x
    x = 1,444,289,940.14/53,165.10
  6. Step 6: Final answer
    x = 27,166.13

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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.