Home / 108,643.50-162,871.07-42,037.80

Finding the Fourth Proportional to 108,643.50, 162,871.07 and 42,037.80

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Solution

The fourth proportional to 108,643.50, 162,871.07 and 42,037.80 is: 63,020.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,643.50 : 162,871.07 = 42,037.80 : x
  2. Step 2: Convert to fraction form
    108,643.50/162,871.07 = 42,037.80/x
  3. Step 3: Cross multiply
    108,643.50x = 162,871.07 × 42,037.80
  4. Step 4: Simplify right side
    108,643.50x = 6,846,741,256.26
  5. Step 5: Solve for x
    x = 6,846,741,256.26/108,643.50
  6. Step 6: Final answer
    x = 63,020.26

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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.