Home / 74,790.20-112,206.56-30,448.77

Finding the Fourth Proportional to 74,790.20, 112,206.56 and 30,448.77

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Solution

The fourth proportional to 74,790.20, 112,206.56 and 30,448.77 is: 45,681.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,790.20 : 112,206.56 = 30,448.77 : x
  2. Step 2: Convert to fraction form
    74,790.20/112,206.56 = 30,448.77/x
  3. Step 3: Cross multiply
    74,790.20x = 112,206.56 × 30,448.77
  4. Step 4: Simplify right side
    74,790.20x = 3,416,551,585.69
  5. Step 5: Solve for x
    x = 3,416,551,585.69/74,790.20
  6. Step 6: Final answer
    x = 45,681.81

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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.