Home / 75,056.31-112,576.10-18,896.40

Finding the Fourth Proportional to 75,056.31, 112,576.10 and 18,896.40

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Solution

The fourth proportional to 75,056.31, 112,576.10 and 18,896.40 is: 28,342.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,056.31 : 112,576.10 = 18,896.40 : x
  2. Step 2: Convert to fraction form
    75,056.31/112,576.10 = 18,896.40/x
  3. Step 3: Cross multiply
    75,056.31x = 112,576.10 × 18,896.40
  4. Step 4: Simplify right side
    75,056.31x = 2,127,282,921.56
  5. Step 5: Solve for x
    x = 2,127,282,921.56/75,056.31
  6. Step 6: Final answer
    x = 28,342.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.