Home / 96,420.72-133,056.60-56,135.52

Finding the Fourth Proportional to 96,420.72, 133,056.60 and 56,135.52

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Solution

The fourth proportional to 96,420.72, 133,056.60 and 56,135.52 is: 77,464.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,420.72 : 133,056.60 = 56,135.52 : x
  2. Step 2: Convert to fraction form
    96,420.72/133,056.60 = 56,135.52/x
  3. Step 3: Cross multiply
    96,420.72x = 133,056.60 × 56,135.52
  4. Step 4: Simplify right side
    96,420.72x = 7,469,201,430.43
  5. Step 5: Solve for x
    x = 7,469,201,430.43/96,420.72
  6. Step 6: Final answer
    x = 77,464.69

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Why These Related Problems?

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