Home / 83,313.18-124,981.64-30,718.58

Finding the Fourth Proportional to 83,313.18, 124,981.64 and 30,718.58

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Solution

The fourth proportional to 83,313.18, 124,981.64 and 30,718.58 is: 46,082.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,313.18 : 124,981.64 = 30,718.58 : x
  2. Step 2: Convert to fraction form
    83,313.18/124,981.64 = 30,718.58/x
  3. Step 3: Cross multiply
    83,313.18x = 124,981.64 × 30,718.58
  4. Step 4: Simplify right side
    83,313.18x = 3,839,257,728.37
  5. Step 5: Solve for x
    x = 3,839,257,728.37/83,313.18
  6. Step 6: Final answer
    x = 46,082.24

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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.