Home / 74,260.67-111,397.55-20,953.11

Finding the Fourth Proportional to 74,260.67, 111,397.55 and 20,953.11

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Solution

The fourth proportional to 74,260.67, 111,397.55 and 20,953.11 is: 31,431.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.67 : 111,397.55 = 20,953.11 : x
  2. Step 2: Convert to fraction form
    74,260.67/111,397.55 = 20,953.11/x
  3. Step 3: Cross multiply
    74,260.67x = 111,397.55 × 20,953.11
  4. Step 4: Simplify right side
    74,260.67x = 2,334,125,431.86
  5. Step 5: Solve for x
    x = 2,334,125,431.86/74,260.67
  6. Step 6: Final answer
    x = 31,431.52

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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.