Home / 74,434.20-111,521.70-64,066.20

Finding the Fourth Proportional to 74,434.20, 111,521.70 and 64,066.20

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Solution

The fourth proportional to 74,434.20, 111,521.70 and 64,066.20 is: 95,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,434.20 : 111,521.70 = 64,066.20 : x
  2. Step 2: Convert to fraction form
    74,434.20/111,521.70 = 64,066.20/x
  3. Step 3: Cross multiply
    74,434.20x = 111,521.70 × 64,066.20
  4. Step 4: Simplify right side
    74,434.20x = 7,144,771,536.54
  5. Step 5: Solve for x
    x = 7,144,771,536.54/74,434.20
  6. Step 6: Final answer
    x = 95,987.75

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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.