Home / 77,401-106,836.18-50,547.64

Finding the Fourth Proportional to 77,401, 106,836.18 and 50,547.64

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Solution

The fourth proportional to 77,401, 106,836.18 and 50,547.64 is: 69,770.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,401 : 106,836.18 = 50,547.64 : x
  2. Step 2: Convert to fraction form
    77,401/106,836.18 = 50,547.64/x
  3. Step 3: Cross multiply
    77,401x = 106,836.18 × 50,547.64
  4. Step 4: Simplify right side
    77,401x = 5,400,316,765.62
  5. Step 5: Solve for x
    x = 5,400,316,765.62/77,401
  6. Step 6: Final answer
    x = 69,770.63

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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.