Home / 82,912.40-114,418.68-45,186.32

Finding the Fourth Proportional to 82,912.40, 114,418.68 and 45,186.32

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Solution

The fourth proportional to 82,912.40, 114,418.68 and 45,186.32 is: 62,356.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,912.40 : 114,418.68 = 45,186.32 : x
  2. Step 2: Convert to fraction form
    82,912.40/114,418.68 = 45,186.32/x
  3. Step 3: Cross multiply
    82,912.40x = 114,418.68 × 45,186.32
  4. Step 4: Simplify right side
    82,912.40x = 5,170,159,088.46
  5. Step 5: Solve for x
    x = 5,170,159,088.46/82,912.40
  6. Step 6: Final answer
    x = 62,356.89

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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.