Home / 65,416.60-90,275.34-37,122.76

Finding the Fourth Proportional to 65,416.60, 90,275.34 and 37,122.76

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Solution

The fourth proportional to 65,416.60, 90,275.34 and 37,122.76 is: 51,229.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,416.60 : 90,275.34 = 37,122.76 : x
  2. Step 2: Convert to fraction form
    65,416.60/90,275.34 = 37,122.76/x
  3. Step 3: Cross multiply
    65,416.60x = 90,275.34 × 37,122.76
  4. Step 4: Simplify right side
    65,416.60x = 3,351,269,780.74
  5. Step 5: Solve for x
    x = 3,351,269,780.74/65,416.60
  6. Step 6: Final answer
    x = 51,229.65

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Double scale
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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.