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Finding the Fourth Proportional to 69,707.74, 104,502.84 and 30,235.12

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Solution

The fourth proportional to 69,707.74, 104,502.84 and 30,235.12 is: 45,327.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,707.74 : 104,502.84 = 30,235.12 : x
  2. Step 2: Convert to fraction form
    69,707.74/104,502.84 = 30,235.12/x
  3. Step 3: Cross multiply
    69,707.74x = 104,502.84 × 30,235.12
  4. Step 4: Simplify right side
    69,707.74x = 3,159,655,907.74
  5. Step 5: Solve for x
    x = 3,159,655,907.74/69,707.74
  6. Step 6: Final answer
    x = 45,327.19

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1.5x scale

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.