Home / 52,079.60-71,869-28,206.06

Finding the Fourth Proportional to 52,079.60, 71,869 and 28,206.06

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Solution

The fourth proportional to 52,079.60, 71,869 and 28,206.06 is: 38,923.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,079.60 : 71,869 = 28,206.06 : x
  2. Step 2: Convert to fraction form
    52,079.60/71,869 = 28,206.06/x
  3. Step 3: Cross multiply
    52,079.60x = 71,869 × 28,206.06
  4. Step 4: Simplify right side
    52,079.60x = 2,027,141,326.14
  5. Step 5: Solve for x
    x = 2,027,141,326.14/52,079.60
  6. Step 6: Final answer
    x = 38,923.90

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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.