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Finding the Fourth Proportional to 93,607.20, 140,410.80 and 30,427.20

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Solution

The fourth proportional to 93,607.20, 140,410.80 and 30,427.20 is: 45,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,607.20 : 140,410.80 = 30,427.20 : x
  2. Step 2: Convert to fraction form
    93,607.20/140,410.80 = 30,427.20/x
  3. Step 3: Cross multiply
    93,607.20x = 140,410.80 × 30,427.20
  4. Step 4: Simplify right side
    93,607.20x = 4,272,307,493.76
  5. Step 5: Solve for x
    x = 4,272,307,493.76/93,607.20
  6. Step 6: Final answer
    x = 45,640.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.