Home / 81,576.16-112,574.43-45,766.16

Finding the Fourth Proportional to 81,576.16, 112,574.43 and 45,766.16

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Solution

The fourth proportional to 81,576.16, 112,574.43 and 45,766.16 is: 63,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.16 : 112,574.43 = 45,766.16 : x
  2. Step 2: Convert to fraction form
    81,576.16/112,574.43 = 45,766.16/x
  3. Step 3: Cross multiply
    81,576.16x = 112,574.43 × 45,766.16
  4. Step 4: Simplify right side
    81,576.16x = 5,152,098,812.42
  5. Step 5: Solve for x
    x = 5,152,098,812.42/81,576.16
  6. Step 6: Final answer
    x = 63,156.92

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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.