Home / 48,281.96-72,398.16-20,194.40

Finding the Fourth Proportional to 48,281.96, 72,398.16 and 20,194.40

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Solution

The fourth proportional to 48,281.96, 72,398.16 and 20,194.40 is: 30,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,281.96 : 72,398.16 = 20,194.40 : x
  2. Step 2: Convert to fraction form
    48,281.96/72,398.16 = 20,194.40/x
  3. Step 3: Cross multiply
    48,281.96x = 72,398.16 × 20,194.40
  4. Step 4: Simplify right side
    48,281.96x = 1,462,037,402.30
  5. Step 5: Solve for x
    x = 1,462,037,402.30/48,281.96
  6. Step 6: Final answer
    x = 30,281.24

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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.