Home / 70,122.96-104,977.08-42,336.72

Finding the Fourth Proportional to 70,122.96, 104,977.08 and 42,336.72

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Solution

The fourth proportional to 70,122.96, 104,977.08 and 42,336.72 is: 63,379.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,122.96 : 104,977.08 = 42,336.72 : x
  2. Step 2: Convert to fraction form
    70,122.96/104,977.08 = 42,336.72/x
  3. Step 3: Cross multiply
    70,122.96x = 104,977.08 × 42,336.72
  4. Step 4: Simplify right side
    70,122.96x = 4,444,385,242.38
  5. Step 5: Solve for x
    x = 4,444,385,242.38/70,122.96
  6. Step 6: Final answer
    x = 63,379.89

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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.