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Finding the Fourth Proportional to 69,707.79, 104,502.89 and 30,235.16

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Solution

The fourth proportional to 69,707.79, 104,502.89 and 30,235.16 is: 45,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,707.79 : 104,502.89 = 30,235.16 : x
  2. Step 2: Convert to fraction form
    69,707.79/104,502.89 = 30,235.16/x
  3. Step 3: Cross multiply
    69,707.79x = 104,502.89 × 30,235.16
  4. Step 4: Simplify right side
    69,707.79x = 3,159,661,936.46
  5. Step 5: Solve for x
    x = 3,159,661,936.46/69,707.79
  6. Step 6: Final answer
    x = 45,327.24

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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.