Home / 65,465.28-90,331.20-37,160.64

Finding the Fourth Proportional to 65,465.28, 90,331.20 and 37,160.64

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Solution

The fourth proportional to 65,465.28, 90,331.20 and 37,160.64 is: 51,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,465.28 : 90,331.20 = 37,160.64 : x
  2. Step 2: Convert to fraction form
    65,465.28/90,331.20 = 37,160.64/x
  3. Step 3: Cross multiply
    65,465.28x = 90,331.20 × 37,160.64
  4. Step 4: Simplify right side
    65,465.28x = 3,356,765,203.97
  5. Step 5: Solve for x
    x = 3,356,765,203.97/65,465.28
  6. Step 6: Final answer
    x = 51,275.50

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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.