Home / 81,530.42-112,460.20-58,902.66

Finding the Fourth Proportional to 81,530.42, 112,460.20 and 58,902.66

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Solution

The fourth proportional to 81,530.42, 112,460.20 and 58,902.66 is: 81,248.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,530.42 : 112,460.20 = 58,902.66 : x
  2. Step 2: Convert to fraction form
    81,530.42/112,460.20 = 58,902.66/x
  3. Step 3: Cross multiply
    81,530.42x = 112,460.20 × 58,902.66
  4. Step 4: Simplify right side
    81,530.42x = 6,624,204,776.88
  5. Step 5: Solve for x
    x = 6,624,204,776.88/81,530.42
  6. Step 6: Final answer
    x = 81,248.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.