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Finding the Fourth Proportional to 61,190.65, 91,812.29 and 33,130.76

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Solution

The fourth proportional to 61,190.65, 91,812.29 and 33,130.76 is: 49,710.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,190.65 : 91,812.29 = 33,130.76 : x
  2. Step 2: Convert to fraction form
    61,190.65/91,812.29 = 33,130.76/x
  3. Step 3: Cross multiply
    61,190.65x = 91,812.29 × 33,130.76
  4. Step 4: Simplify right side
    61,190.65x = 3,041,810,320.33
  5. Step 5: Solve for x
    x = 3,041,810,320.33/61,190.65
  6. Step 6: Final answer
    x = 49,710.38

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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.