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Finding the Fourth Proportional to 65,775.74, 90,771.51 and 37,480.82

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Solution

The fourth proportional to 65,775.74, 90,771.51 and 37,480.82 is: 51,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,775.74 : 90,771.51 = 37,480.82 : x
  2. Step 2: Convert to fraction form
    65,775.74/90,771.51 = 37,480.82/x
  3. Step 3: Cross multiply
    65,775.74x = 90,771.51 × 37,480.82
  4. Step 4: Simplify right side
    65,775.74x = 3,402,190,627.44
  5. Step 5: Solve for x
    x = 3,402,190,627.44/65,775.74
  6. Step 6: Final answer
    x = 51,724.10

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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.