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Finding the Fourth Proportional to 64,683.70, 89,264.24 and 35,615.33

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Solution

The fourth proportional to 64,683.70, 89,264.24 and 35,615.33 is: 49,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,683.70 : 89,264.24 = 35,615.33 : x
  2. Step 2: Convert to fraction form
    64,683.70/89,264.24 = 35,615.33/x
  3. Step 3: Cross multiply
    64,683.70x = 89,264.24 × 35,615.33
  4. Step 4: Simplify right side
    64,683.70x = 3,179,175,364.80
  5. Step 5: Solve for x
    x = 3,179,175,364.80/64,683.70
  6. Step 6: Final answer
    x = 49,149.56

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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.