Home / 75,321.16-112,981.24-19,160.79

Finding the Fourth Proportional to 75,321.16, 112,981.24 and 19,160.79

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Solution

The fourth proportional to 75,321.16, 112,981.24 and 19,160.79 is: 28,741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,321.16 : 112,981.24 = 19,160.79 : x
  2. Step 2: Convert to fraction form
    75,321.16/112,981.24 = 19,160.79/x
  3. Step 3: Cross multiply
    75,321.16x = 112,981.24 × 19,160.79
  4. Step 4: Simplify right side
    75,321.16x = 2,164,809,248.67
  5. Step 5: Solve for x
    x = 2,164,809,248.67/75,321.16
  6. Step 6: Final answer
    x = 28,741.05

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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.