Home / 74,465.60-111,716.96-21,875.06

Finding the Fourth Proportional to 74,465.60, 111,716.96 and 21,875.06

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Solution

The fourth proportional to 74,465.60, 111,716.96 and 21,875.06 is: 32,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,465.60 : 111,716.96 = 21,875.06 : x
  2. Step 2: Convert to fraction form
    74,465.60/111,716.96 = 21,875.06/x
  3. Step 3: Cross multiply
    74,465.60x = 111,716.96 × 21,875.06
  4. Step 4: Simplify right side
    74,465.60x = 2,443,815,372.93
  5. Step 5: Solve for x
    x = 2,443,815,372.93/74,465.60
  6. Step 6: Final answer
    x = 32,818.05

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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.