Home / 93,638.20-140,287.20-54,077.80

Finding the Fourth Proportional to 93,638.20, 140,287.20 and 54,077.80

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Solution

The fourth proportional to 93,638.20, 140,287.20 and 54,077.80 is: 81,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,638.20 : 140,287.20 = 54,077.80 : x
  2. Step 2: Convert to fraction form
    93,638.20/140,287.20 = 54,077.80/x
  3. Step 3: Cross multiply
    93,638.20x = 140,287.20 × 54,077.80
  4. Step 4: Simplify right side
    93,638.20x = 7,586,423,144.16
  5. Step 5: Solve for x
    x = 7,586,423,144.16/93,638.20
  6. Step 6: Final answer
    x = 81,018.46

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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.