Home / 90,037.76-135,053.69-26,858.39

Finding the Fourth Proportional to 90,037.76, 135,053.69 and 26,858.39

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Solution

The fourth proportional to 90,037.76, 135,053.69 and 26,858.39 is: 40,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,037.76 : 135,053.69 = 26,858.39 : x
  2. Step 2: Convert to fraction form
    90,037.76/135,053.69 = 26,858.39/x
  3. Step 3: Cross multiply
    90,037.76x = 135,053.69 × 26,858.39
  4. Step 4: Simplify right side
    90,037.76x = 3,627,323,867.40
  5. Step 5: Solve for x
    x = 3,627,323,867.40/90,037.76
  6. Step 6: Final answer
    x = 40,286.70

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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.