Home / 66,117.30-91,241.77-36,309.30

Finding the Fourth Proportional to 66,117.30, 91,241.77 and 36,309.30

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Solution

The fourth proportional to 66,117.30, 91,241.77 and 36,309.30 is: 50,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,117.30 : 91,241.77 = 36,309.30 : x
  2. Step 2: Convert to fraction form
    66,117.30/91,241.77 = 36,309.30/x
  3. Step 3: Cross multiply
    66,117.30x = 91,241.77 × 36,309.30
  4. Step 4: Simplify right side
    66,117.30x = 3,312,924,799.46
  5. Step 5: Solve for x
    x = 3,312,924,799.46/66,117.30
  6. Step 6: Final answer
    x = 50,106.78

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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.