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Finding the Fourth Proportional to 61,905, 85,426.60 and 33,610.08

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Solution

The fourth proportional to 61,905, 85,426.60 and 33,610.08 is: 46,380.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,905 : 85,426.60 = 33,610.08 : x
  2. Step 2: Convert to fraction form
    61,905/85,426.60 = 33,610.08/x
  3. Step 3: Cross multiply
    61,905x = 85,426.60 × 33,610.08
  4. Step 4: Simplify right side
    61,905x = 2,871,194,860.13
  5. Step 5: Solve for x
    x = 2,871,194,860.13/61,905
  6. Step 6: Final answer
    x = 46,380.66

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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.