Home / 90,064.26-135,119.88-52,656.30

Finding the Fourth Proportional to 90,064.26, 135,119.88 and 52,656.30

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Solution

The fourth proportional to 90,064.26, 135,119.88 and 52,656.30 is: 78,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,064.26 : 135,119.88 = 52,656.30 : x
  2. Step 2: Convert to fraction form
    90,064.26/135,119.88 = 52,656.30/x
  3. Step 3: Cross multiply
    90,064.26x = 135,119.88 × 52,656.30
  4. Step 4: Simplify right side
    90,064.26x = 7,114,912,937.24
  5. Step 5: Solve for x
    x = 7,114,912,937.24/90,064.26
  6. Step 6: Final answer
    x = 78,998.18

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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.