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Finding the Fourth Proportional to 61,151.93, 91,902.84 and 30,009.05

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Solution

The fourth proportional to 61,151.93, 91,902.84 and 30,009.05 is: 45,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,151.93 : 91,902.84 = 30,009.05 : x
  2. Step 2: Convert to fraction form
    61,151.93/91,902.84 = 30,009.05/x
  3. Step 3: Cross multiply
    61,151.93x = 91,902.84 × 30,009.05
  4. Step 4: Simplify right side
    61,151.93x = 2,757,916,461.19
  5. Step 5: Solve for x
    x = 2,757,916,461.19/61,151.93
  6. Step 6: Final answer
    x = 45,099.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.