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Finding the Fourth Proportional to 69,856.57, 104,784.89 and 23,109.45

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Solution

The fourth proportional to 69,856.57, 104,784.89 and 23,109.45 is: 34,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,856.57 : 104,784.89 = 23,109.45 : x
  2. Step 2: Convert to fraction form
    69,856.57/104,784.89 = 23,109.45/x
  3. Step 3: Cross multiply
    69,856.57x = 104,784.89 × 23,109.45
  4. Step 4: Simplify right side
    69,856.57x = 2,421,520,652.29
  5. Step 5: Solve for x
    x = 2,421,520,652.29/69,856.57
  6. Step 6: Final answer
    x = 34,664.18

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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.