Home / 112,622.48-168,931.73-28,380.75

Finding the Fourth Proportional to 112,622.48, 168,931.73 and 28,380.75

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Solution

The fourth proportional to 112,622.48, 168,931.73 and 28,380.75 is: 42,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,622.48 : 168,931.73 = 28,380.75 : x
  2. Step 2: Convert to fraction form
    112,622.48/168,931.73 = 28,380.75/x
  3. Step 3: Cross multiply
    112,622.48x = 168,931.73 × 28,380.75
  4. Step 4: Simplify right side
    112,622.48x = 4,794,409,899.38
  5. Step 5: Solve for x
    x = 4,794,409,899.38/112,622.48
  6. Step 6: Final answer
    x = 42,570.63

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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.