Home / 56,071.20-84,108.32-18,122.10

Finding the Fourth Proportional to 56,071.20, 84,108.32 and 18,122.10

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Solution

The fourth proportional to 56,071.20, 84,108.32 and 18,122.10 is: 27,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,071.20 : 84,108.32 = 18,122.10 : x
  2. Step 2: Convert to fraction form
    56,071.20/84,108.32 = 18,122.10/x
  3. Step 3: Cross multiply
    56,071.20x = 84,108.32 × 18,122.10
  4. Step 4: Simplify right side
    56,071.20x = 1,524,219,047.81
  5. Step 5: Solve for x
    x = 1,524,219,047.81/56,071.20
  6. Step 6: Final answer
    x = 27,183.63

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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.