Home / 69,762.28-104,641.08-30,319.39

Finding the Fourth Proportional to 69,762.28, 104,641.08 and 30,319.39

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Solution

The fourth proportional to 69,762.28, 104,641.08 and 30,319.39 is: 45,478.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,762.28 : 104,641.08 = 30,319.39 : x
  2. Step 2: Convert to fraction form
    69,762.28/104,641.08 = 30,319.39/x
  3. Step 3: Cross multiply
    69,762.28x = 104,641.08 × 30,319.39
  4. Step 4: Simplify right side
    69,762.28x = 3,172,653,714.54
  5. Step 5: Solve for x
    x = 3,172,653,714.54/69,762.28
  6. Step 6: Final answer
    x = 45,478.07

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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.