Home / 65,904.78-90,948.68-35,690.15

Finding the Fourth Proportional to 65,904.78, 90,948.68 and 35,690.15

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Solution

The fourth proportional to 65,904.78, 90,948.68 and 35,690.15 is: 49,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.78 : 90,948.68 = 35,690.15 : x
  2. Step 2: Convert to fraction form
    65,904.78/90,948.68 = 35,690.15/x
  3. Step 3: Cross multiply
    65,904.78x = 90,948.68 × 35,690.15
  4. Step 4: Simplify right side
    65,904.78x = 3,245,971,576.76
  5. Step 5: Solve for x
    x = 3,245,971,576.76/65,904.78
  6. Step 6: Final answer
    x = 49,252.45

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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.