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Finding the Fourth Proportional to 70,273.67, 105,424.61 and 25,900.65

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Solution

The fourth proportional to 70,273.67, 105,424.61 and 25,900.65 is: 38,856.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.67 : 105,424.61 = 25,900.65 : x
  2. Step 2: Convert to fraction form
    70,273.67/105,424.61 = 25,900.65/x
  3. Step 3: Cross multiply
    70,273.67x = 105,424.61 × 25,900.65
  4. Step 4: Simplify right side
    70,273.67x = 2,730,565,795.49
  5. Step 5: Solve for x
    x = 2,730,565,795.49/70,273.67
  6. Step 6: Final answer
    x = 38,856.17

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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.