Home / 81,630.08-112,648.57-45,819.17

Finding the Fourth Proportional to 81,630.08, 112,648.57 and 45,819.17

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Solution

The fourth proportional to 81,630.08, 112,648.57 and 45,819.17 is: 63,229.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,630.08 : 112,648.57 = 45,819.17 : x
  2. Step 2: Convert to fraction form
    81,630.08/112,648.57 = 45,819.17/x
  3. Step 3: Cross multiply
    81,630.08x = 112,648.57 × 45,819.17
  4. Step 4: Simplify right side
    81,630.08x = 5,161,463,981.46
  5. Step 5: Solve for x
    x = 5,161,463,981.46/81,630.08
  6. Step 6: Final answer
    x = 63,229.93

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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.