Home / 66,276.68-91,464.20-37,987.76

Finding the Fourth Proportional to 66,276.68, 91,464.20 and 37,987.76

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Solution

The fourth proportional to 66,276.68, 91,464.20 and 37,987.76 is: 52,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,276.68 : 91,464.20 = 37,987.76 : x
  2. Step 2: Convert to fraction form
    66,276.68/91,464.20 = 37,987.76/x
  3. Step 3: Cross multiply
    66,276.68x = 91,464.20 × 37,987.76
  4. Step 4: Simplify right side
    66,276.68x = 3,474,520,078.19
  5. Step 5: Solve for x
    x = 3,474,520,078.19/66,276.68
  6. Step 6: Final answer
    x = 52,424.47

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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.