Home / 65,508.28-90,405.12-37,219.84

Finding the Fourth Proportional to 65,508.28, 90,405.12 and 37,219.84

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Solution

The fourth proportional to 65,508.28, 90,405.12 and 37,219.84 is: 51,365.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,508.28 : 90,405.12 = 37,219.84 : x
  2. Step 2: Convert to fraction form
    65,508.28/90,405.12 = 37,219.84/x
  3. Step 3: Cross multiply
    65,508.28x = 90,405.12 × 37,219.84
  4. Step 4: Simplify right side
    65,508.28x = 3,364,864,101.58
  5. Step 5: Solve for x
    x = 3,364,864,101.58/65,508.28
  6. Step 6: Final answer
    x = 51,365.48

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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.