Home / 66,140.20-99,095.10-42,754.60

Finding the Fourth Proportional to 66,140.20, 99,095.10 and 42,754.60

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Solution

The fourth proportional to 66,140.20, 99,095.10 and 42,754.60 is: 64,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,140.20 : 99,095.10 = 42,754.60 : x
  2. Step 2: Convert to fraction form
    66,140.20/99,095.10 = 42,754.60/x
  3. Step 3: Cross multiply
    66,140.20x = 99,095.10 × 42,754.60
  4. Step 4: Simplify right side
    66,140.20x = 4,236,771,362.46
  5. Step 5: Solve for x
    x = 4,236,771,362.46/66,140.20
  6. Step 6: Final answer
    x = 64,057.43

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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.