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Finding the Fourth Proportional to 70,509.72, 105,761.52 and 23,762.40

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Solution

The fourth proportional to 70,509.72, 105,761.52 and 23,762.40 is: 35,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,509.72 : 105,761.52 = 23,762.40 : x
  2. Step 2: Convert to fraction form
    70,509.72/105,761.52 = 23,762.40/x
  3. Step 3: Cross multiply
    70,509.72x = 105,761.52 × 23,762.40
  4. Step 4: Simplify right side
    70,509.72x = 2,513,147,542.85
  5. Step 5: Solve for x
    x = 2,513,147,542.85/70,509.72
  6. Step 6: Final answer
    x = 35,642.57

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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.