Home / 65,736.02-90,722.91-38,146.76

Finding the Fourth Proportional to 65,736.02, 90,722.91 and 38,146.76

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Solution

The fourth proportional to 65,736.02, 90,722.91 and 38,146.76 is: 52,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,736.02 : 90,722.91 = 38,146.76 : x
  2. Step 2: Convert to fraction form
    65,736.02/90,722.91 = 38,146.76/x
  3. Step 3: Cross multiply
    65,736.02x = 90,722.91 × 38,146.76
  4. Step 4: Simplify right side
    65,736.02x = 3,460,785,074.27
  5. Step 5: Solve for x
    x = 3,460,785,074.27/65,736.02
  6. Step 6: Final answer
    x = 52,646.71

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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.