Home / 74,526.42-111,789.51-19,122.42

Finding the Fourth Proportional to 74,526.42, 111,789.51 and 19,122.42

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Solution

The fourth proportional to 74,526.42, 111,789.51 and 19,122.42 is: 28,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,526.42 : 111,789.51 = 19,122.42 : x
  2. Step 2: Convert to fraction form
    74,526.42/111,789.51 = 19,122.42/x
  3. Step 3: Cross multiply
    74,526.42x = 111,789.51 × 19,122.42
  4. Step 4: Simplify right side
    74,526.42x = 2,137,685,961.81
  5. Step 5: Solve for x
    x = 2,137,685,961.81/74,526.42
  6. Step 6: Final answer
    x = 28,683.60

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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.