Home / 65,243.39-90,030.38-36,172.53

Finding the Fourth Proportional to 65,243.39, 90,030.38 and 36,172.53

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Solution

The fourth proportional to 65,243.39, 90,030.38 and 36,172.53 is: 49,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,243.39 : 90,030.38 = 36,172.53 : x
  2. Step 2: Convert to fraction form
    65,243.39/90,030.38 = 36,172.53/x
  3. Step 3: Cross multiply
    65,243.39x = 90,030.38 × 36,172.53
  4. Step 4: Simplify right side
    65,243.39x = 3,256,626,440.60
  5. Step 5: Solve for x
    x = 3,256,626,440.60/65,243.39
  6. Step 6: Final answer
    x = 49,915.04

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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.