Home / 74,047.58-111,021.96-40,783.40

Finding the Fourth Proportional to 74,047.58, 111,021.96 and 40,783.40

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Solution

The fourth proportional to 74,047.58, 111,021.96 and 40,783.40 is: 61,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,047.58 : 111,021.96 = 40,783.40 : x
  2. Step 2: Convert to fraction form
    74,047.58/111,021.96 = 40,783.40/x
  3. Step 3: Cross multiply
    74,047.58x = 111,021.96 × 40,783.40
  4. Step 4: Simplify right side
    74,047.58x = 4,527,853,003.46
  5. Step 5: Solve for x
    x = 4,527,853,003.46/74,047.58
  6. Step 6: Final answer
    x = 61,147.89

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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.