Home / 81,576.65-112,574.07-45,275.98

Finding the Fourth Proportional to 81,576.65, 112,574.07 and 45,275.98

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Solution

The fourth proportional to 81,576.65, 112,574.07 and 45,275.98 is: 62,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.65 : 112,574.07 = 45,275.98 : x
  2. Step 2: Convert to fraction form
    81,576.65/112,574.07 = 45,275.98/x
  3. Step 3: Cross multiply
    81,576.65x = 112,574.07 × 45,275.98
  4. Step 4: Simplify right side
    81,576.65x = 5,096,901,060.40
  5. Step 5: Solve for x
    x = 5,096,901,060.40/81,576.65
  6. Step 6: Final answer
    x = 62,479.91

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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.