Home / 82,911.12-114,455.76-48,908.16

Finding the Fourth Proportional to 82,911.12, 114,455.76 and 48,908.16

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Solution

The fourth proportional to 82,911.12, 114,455.76 and 48,908.16 is: 67,515.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,911.12 : 114,455.76 = 48,908.16 : x
  2. Step 2: Convert to fraction form
    82,911.12/114,455.76 = 48,908.16/x
  3. Step 3: Cross multiply
    82,911.12x = 114,455.76 × 48,908.16
  4. Step 4: Simplify right side
    82,911.12x = 5,597,820,623.00
  5. Step 5: Solve for x
    x = 5,597,820,623.00/82,911.12
  6. Step 6: Final answer
    x = 67,515.92

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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.