Home / 55,081.71-76,011.26-31,210.61

Finding the Fourth Proportional to 55,081.71, 76,011.26 and 31,210.61

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Solution

The fourth proportional to 55,081.71, 76,011.26 and 31,210.61 is: 43,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,081.71 : 76,011.26 = 31,210.61 : x
  2. Step 2: Convert to fraction form
    55,081.71/76,011.26 = 31,210.61/x
  3. Step 3: Cross multiply
    55,081.71x = 76,011.26 × 31,210.61
  4. Step 4: Simplify right side
    55,081.71x = 2,372,357,255.36
  5. Step 5: Solve for x
    x = 2,372,357,255.36/55,081.71
  6. Step 6: Final answer
    x = 43,069.78

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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.