Home / 84,426.56-126,646.49-28,266.90

Finding the Fourth Proportional to 84,426.56, 126,646.49 and 28,266.90

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Solution

The fourth proportional to 84,426.56, 126,646.49 and 28,266.90 is: 42,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,426.56 : 126,646.49 = 28,266.90 : x
  2. Step 2: Convert to fraction form
    84,426.56/126,646.49 = 28,266.90/x
  3. Step 3: Cross multiply
    84,426.56x = 126,646.49 × 28,266.90
  4. Step 4: Simplify right side
    84,426.56x = 3,579,903,817.31
  5. Step 5: Solve for x
    x = 3,579,903,817.31/84,426.56
  6. Step 6: Final answer
    x = 42,402.58

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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.