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Finding the Fourth Proportional to 70,291.40, 105,320.46 and 49,471.16

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Solution

The fourth proportional to 70,291.40, 105,320.46 and 49,471.16 is: 74,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,291.40 : 105,320.46 = 49,471.16 : x
  2. Step 2: Convert to fraction form
    70,291.40/105,320.46 = 49,471.16/x
  3. Step 3: Cross multiply
    70,291.40x = 105,320.46 × 49,471.16
  4. Step 4: Simplify right side
    70,291.40x = 5,210,325,327.93
  5. Step 5: Solve for x
    x = 5,210,325,327.93/70,291.40
  6. Step 6: Final answer
    x = 74,124.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.