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Finding the Fourth Proportional to 65,995.55, 91,074.51 and 35,780.79

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Solution

The fourth proportional to 65,995.55, 91,074.51 and 35,780.79 is: 49,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,995.55 : 91,074.51 = 35,780.79 : x
  2. Step 2: Convert to fraction form
    65,995.55/91,074.51 = 35,780.79/x
  3. Step 3: Cross multiply
    65,995.55x = 91,074.51 × 35,780.79
  4. Step 4: Simplify right side
    65,995.55x = 3,258,717,916.66
  5. Step 5: Solve for x
    x = 3,258,717,916.66/65,995.55
  6. Step 6: Final answer
    x = 49,377.84

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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.