Home / 74,788.90-112,150.60-28,008.96

Finding the Fourth Proportional to 74,788.90, 112,150.60 and 28,008.96

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Solution

The fourth proportional to 74,788.90, 112,150.60 and 28,008.96 is: 42,001.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,788.90 : 112,150.60 = 28,008.96 : x
  2. Step 2: Convert to fraction form
    74,788.90/112,150.60 = 28,008.96/x
  3. Step 3: Cross multiply
    74,788.90x = 112,150.60 × 28,008.96
  4. Step 4: Simplify right side
    74,788.90x = 3,141,221,669.38
  5. Step 5: Solve for x
    x = 3,141,221,669.38/74,788.90
  6. Step 6: Final answer
    x = 42,001.17

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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.