Home / 74,039.58-111,009.96-40,775.40

Finding the Fourth Proportional to 74,039.58, 111,009.96 and 40,775.40

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Solution

The fourth proportional to 74,039.58, 111,009.96 and 40,775.40 is: 61,135.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,039.58 : 111,009.96 = 40,775.40 : x
  2. Step 2: Convert to fraction form
    74,039.58/111,009.96 = 40,775.40/x
  3. Step 3: Cross multiply
    74,039.58x = 111,009.96 × 40,775.40
  4. Step 4: Simplify right side
    74,039.58x = 4,526,475,522.98
  5. Step 5: Solve for x
    x = 4,526,475,522.98/74,039.58
  6. Step 6: Final answer
    x = 61,135.89

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1.5x scale

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.