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Finding the Fourth Proportional to 93,273.10, 139,942.05 and 40,720.30

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Solution

The fourth proportional to 93,273.10, 139,942.05 and 40,720.30 is: 61,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,273.10 : 139,942.05 = 40,720.30 : x
  2. Step 2: Convert to fraction form
    93,273.10/139,942.05 = 40,720.30/x
  3. Step 3: Cross multiply
    93,273.10x = 139,942.05 × 40,720.30
  4. Step 4: Simplify right side
    93,273.10x = 5,698,482,258.62
  5. Step 5: Solve for x
    x = 5,698,482,258.62/93,273.10
  6. Step 6: Final answer
    x = 61,094.59

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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.