Home / 56,121.05-84,117.99-18,672.32

Finding the Fourth Proportional to 56,121.05, 84,117.99 and 18,672.32

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Solution

The fourth proportional to 56,121.05, 84,117.99 and 18,672.32 is: 27,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.05 : 84,117.99 = 18,672.32 : x
  2. Step 2: Convert to fraction form
    56,121.05/84,117.99 = 18,672.32/x
  3. Step 3: Cross multiply
    56,121.05x = 84,117.99 × 18,672.32
  4. Step 4: Simplify right side
    56,121.05x = 1,570,678,027.04
  5. Step 5: Solve for x
    x = 1,570,678,027.04/56,121.05
  6. Step 6: Final answer
    x = 27,987.32

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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.