Home / 83,071.76-114,639.40-45,346.80

Finding the Fourth Proportional to 83,071.76, 114,639.40 and 45,346.80

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Solution

The fourth proportional to 83,071.76, 114,639.40 and 45,346.80 is: 62,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,071.76 : 114,639.40 = 45,346.80 : x
  2. Step 2: Convert to fraction form
    83,071.76/114,639.40 = 45,346.80/x
  3. Step 3: Cross multiply
    83,071.76x = 114,639.40 × 45,346.80
  4. Step 4: Simplify right side
    83,071.76x = 5,198,529,943.92
  5. Step 5: Solve for x
    x = 5,198,529,943.92/83,071.76
  6. Step 6: Final answer
    x = 62,578.79

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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.