Home / 56,637.27-78,161.39-31,144.60

Finding the Fourth Proportional to 56,637.27, 78,161.39 and 31,144.60

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Solution

The fourth proportional to 56,637.27, 78,161.39 and 31,144.60 is: 42,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,637.27 : 78,161.39 = 31,144.60 : x
  2. Step 2: Convert to fraction form
    56,637.27/78,161.39 = 31,144.60/x
  3. Step 3: Cross multiply
    56,637.27x = 78,161.39 × 31,144.60
  4. Step 4: Simplify right side
    56,637.27x = 2,434,305,188.06
  5. Step 5: Solve for x
    x = 2,434,305,188.06/56,637.27
  6. Step 6: Final answer
    x = 42,980.62

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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.