Home / 60,298.31-90,461.25-20,855.39

Finding the Fourth Proportional to 60,298.31, 90,461.25 and 20,855.39

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Solution

The fourth proportional to 60,298.31, 90,461.25 and 20,855.39 is: 31,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,298.31 : 90,461.25 = 20,855.39 : x
  2. Step 2: Convert to fraction form
    60,298.31/90,461.25 = 20,855.39/x
  3. Step 3: Cross multiply
    60,298.31x = 90,461.25 × 20,855.39
  4. Step 4: Simplify right side
    60,298.31x = 1,886,604,092.05
  5. Step 5: Solve for x
    x = 1,886,604,092.05/60,298.31
  6. Step 6: Final answer
    x = 31,287.84

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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.