Home / 86,284.60-129,426.81-27,125.44

Finding the Fourth Proportional to 86,284.60, 129,426.81 and 27,125.44

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Solution

The fourth proportional to 86,284.60, 129,426.81 and 27,125.44 is: 40,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,284.60 : 129,426.81 = 27,125.44 : x
  2. Step 2: Convert to fraction form
    86,284.60/129,426.81 = 27,125.44/x
  3. Step 3: Cross multiply
    86,284.60x = 129,426.81 × 27,125.44
  4. Step 4: Simplify right side
    86,284.60x = 3,510,759,169.05
  5. Step 5: Solve for x
    x = 3,510,759,169.05/86,284.60
  6. Step 6: Final answer
    x = 40,688.13

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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.