Home / 74,991.12-112,515.12-45,026.30

Finding the Fourth Proportional to 74,991.12, 112,515.12 and 45,026.30

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Solution

The fourth proportional to 74,991.12, 112,515.12 and 45,026.30 is: 67,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,991.12 : 112,515.12 = 45,026.30 : x
  2. Step 2: Convert to fraction form
    74,991.12/112,515.12 = 45,026.30/x
  3. Step 3: Cross multiply
    74,991.12x = 112,515.12 × 45,026.30
  4. Step 4: Simplify right side
    74,991.12x = 5,066,138,985.08
  5. Step 5: Solve for x
    x = 5,066,138,985.08/74,991.12
  6. Step 6: Final answer
    x = 67,556.52

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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.