Home / 96,917.21-145,280.90-54,243.48

Finding the Fourth Proportional to 96,917.21, 145,280.90 and 54,243.48

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Solution

The fourth proportional to 96,917.21, 145,280.90 and 54,243.48 is: 81,312.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,917.21 : 145,280.90 = 54,243.48 : x
  2. Step 2: Convert to fraction form
    96,917.21/145,280.90 = 54,243.48/x
  3. Step 3: Cross multiply
    96,917.21x = 145,280.90 × 54,243.48
  4. Step 4: Simplify right side
    96,917.21x = 7,880,540,595.91
  5. Step 5: Solve for x
    x = 7,880,540,595.91/96,917.21
  6. Step 6: Final answer
    x = 81,312.09

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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.