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Finding the Fourth Proportional to 61,267.40, 91,901.10 and 30,163.40

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Solution

The fourth proportional to 61,267.40, 91,901.10 and 30,163.40 is: 45,245.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,267.40 : 91,901.10 = 30,163.40 : x
  2. Step 2: Convert to fraction form
    61,267.40/91,901.10 = 30,163.40/x
  3. Step 3: Cross multiply
    61,267.40x = 91,901.10 × 30,163.40
  4. Step 4: Simplify right side
    61,267.40x = 2,772,049,639.74
  5. Step 5: Solve for x
    x = 2,772,049,639.74/61,267.40
  6. Step 6: Final answer
    x = 45,245.10

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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.