Home / 55,214.32-76,212.96-31,356.88

Finding the Fourth Proportional to 55,214.32, 76,212.96 and 31,356.88

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Solution

The fourth proportional to 55,214.32, 76,212.96 and 31,356.88 is: 43,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,214.32 : 76,212.96 = 31,356.88 : x
  2. Step 2: Convert to fraction form
    55,214.32/76,212.96 = 31,356.88/x
  3. Step 3: Cross multiply
    55,214.32x = 76,212.96 × 31,356.88
  4. Step 4: Simplify right side
    55,214.32x = 2,389,800,641.16
  5. Step 5: Solve for x
    x = 2,389,800,641.16/55,214.32
  6. Step 6: Final answer
    x = 43,282.26

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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.