Home / 90,071.41-134,920.19-52,517.59

Finding the Fourth Proportional to 90,071.41, 134,920.19 and 52,517.59

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Solution

The fourth proportional to 90,071.41, 134,920.19 and 52,517.59 is: 78,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,071.41 : 134,920.19 = 52,517.59 : x
  2. Step 2: Convert to fraction form
    90,071.41/134,920.19 = 52,517.59/x
  3. Step 3: Cross multiply
    90,071.41x = 134,920.19 × 52,517.59
  4. Step 4: Simplify right side
    90,071.41x = 7,085,683,221.14
  5. Step 5: Solve for x
    x = 7,085,683,221.14/90,071.41
  6. Step 6: Final answer
    x = 78,667.40

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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.