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Finding the Fourth Proportional to 70,397.79, 105,605.49 and 23,017.65

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Solution

The fourth proportional to 70,397.79, 105,605.49 and 23,017.65 is: 34,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,397.79 : 105,605.49 = 23,017.65 : x
  2. Step 2: Convert to fraction form
    70,397.79/105,605.49 = 23,017.65/x
  3. Step 3: Cross multiply
    70,397.79x = 105,605.49 × 23,017.65
  4. Step 4: Simplify right side
    70,397.79x = 2,430,790,206.90
  5. Step 5: Solve for x
    x = 2,430,790,206.90/70,397.79
  6. Step 6: Final answer
    x = 34,529.35

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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.