Home / 70,501.42-105,732.69-30,533.86

Finding the Fourth Proportional to 70,501.42, 105,732.69 and 30,533.86

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Solution

The fourth proportional to 70,501.42, 105,732.69 and 30,533.86 is: 45,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,501.42 : 105,732.69 = 30,533.86 : x
  2. Step 2: Convert to fraction form
    70,501.42/105,732.69 = 30,533.86/x
  3. Step 3: Cross multiply
    70,501.42x = 105,732.69 × 30,533.86
  4. Step 4: Simplify right side
    70,501.42x = 3,228,427,153.88
  5. Step 5: Solve for x
    x = 3,228,427,153.88/70,501.42
  6. Step 6: Final answer
    x = 45,792.37

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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.