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Finding the Fourth Proportional to 74,516.81, 111,775.21 and 21,926.31

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Solution

The fourth proportional to 74,516.81, 111,775.21 and 21,926.31 is: 32,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,516.81 : 111,775.21 = 21,926.31 : x
  2. Step 2: Convert to fraction form
    74,516.81/111,775.21 = 21,926.31/x
  3. Step 3: Cross multiply
    74,516.81x = 111,775.21 × 21,926.31
  4. Step 4: Simplify right side
    74,516.81x = 2,450,817,430.80
  5. Step 5: Solve for x
    x = 2,450,817,430.80/74,516.81
  6. Step 6: Final answer
    x = 32,889.46

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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.