Home / 81,717.20-112,763.66-45,913.17

Finding the Fourth Proportional to 81,717.20, 112,763.66 and 45,913.17

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Solution

The fourth proportional to 81,717.20, 112,763.66 and 45,913.17 is: 63,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,717.20 : 112,763.66 = 45,913.17 : x
  2. Step 2: Convert to fraction form
    81,717.20/112,763.66 = 45,913.17/x
  3. Step 3: Cross multiply
    81,717.20x = 112,763.66 × 45,913.17
  4. Step 4: Simplify right side
    81,717.20x = 5,177,337,206.19
  5. Step 5: Solve for x
    x = 5,177,337,206.19/81,717.20
  6. Step 6: Final answer
    x = 63,356.77

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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.