Home / 64,206.12-96,228.96-30,920

Finding the Fourth Proportional to 64,206.12, 96,228.96 and 30,920

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Solution

The fourth proportional to 64,206.12, 96,228.96 and 30,920 is: 46,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,206.12 : 96,228.96 = 30,920 : x
  2. Step 2: Convert to fraction form
    64,206.12/96,228.96 = 30,920/x
  3. Step 3: Cross multiply
    64,206.12x = 96,228.96 × 30,920
  4. Step 4: Simplify right side
    64,206.12x = 2,975,399,443.20
  5. Step 5: Solve for x
    x = 2,975,399,443.20/64,206.12
  6. Step 6: Final answer
    x = 46,341.37

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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.