Home / 81,576.18-112,573.40-45,275.51

Finding the Fourth Proportional to 81,576.18, 112,573.40 and 45,275.51

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Solution

The fourth proportional to 81,576.18, 112,573.40 and 45,275.51 is: 62,479.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.18 : 112,573.40 = 45,275.51 : x
  2. Step 2: Convert to fraction form
    81,576.18/112,573.40 = 45,275.51/x
  3. Step 3: Cross multiply
    81,576.18x = 112,573.40 × 45,275.51
  4. Step 4: Simplify right side
    81,576.18x = 5,096,817,308.19
  5. Step 5: Solve for x
    x = 5,096,817,308.19/81,576.18
  6. Step 6: Final answer
    x = 62,479.23

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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.