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Finding the Fourth Proportional to 70,555.59, 97,366.63 and 38,724.57

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Solution

The fourth proportional to 70,555.59, 97,366.63 and 38,724.57 is: 53,439.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,555.59 : 97,366.63 = 38,724.57 : x
  2. Step 2: Convert to fraction form
    70,555.59/97,366.63 = 38,724.57/x
  3. Step 3: Cross multiply
    70,555.59x = 97,366.63 × 38,724.57
  4. Step 4: Simplify right side
    70,555.59x = 3,770,480,879.10
  5. Step 5: Solve for x
    x = 3,770,480,879.10/70,555.59
  6. Step 6: Final answer
    x = 53,439.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.