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Finding the Fourth Proportional to 34,812.81, 51,947.03 and 30,613.77

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Solution

The fourth proportional to 34,812.81, 51,947.03 and 30,613.77 is: 45,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,812.81 : 51,947.03 = 30,613.77 : x
  2. Step 2: Convert to fraction form
    34,812.81/51,947.03 = 30,613.77/x
  3. Step 3: Cross multiply
    34,812.81x = 51,947.03 × 30,613.77
  4. Step 4: Simplify right side
    34,812.81x = 1,590,294,505.14
  5. Step 5: Solve for x
    x = 1,590,294,505.14/34,812.81
  6. Step 6: Final answer
    x = 45,681.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.