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Finding the Fourth Proportional to 65,699.18, 90,664.84 and 35,484.49

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Solution

The fourth proportional to 65,699.18, 90,664.84 and 35,484.49 is: 48,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,699.18 : 90,664.84 = 35,484.49 : x
  2. Step 2: Convert to fraction form
    65,699.18/90,664.84 = 35,484.49/x
  3. Step 3: Cross multiply
    65,699.18x = 90,664.84 × 35,484.49
  4. Step 4: Simplify right side
    65,699.18x = 3,217,195,608.33
  5. Step 5: Solve for x
    x = 3,217,195,608.33/65,699.18
  6. Step 6: Final answer
    x = 48,968.58

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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.