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Finding the Fourth Proportional to 93,412.40, 139,964.70 and 53,900.60

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Solution

The fourth proportional to 93,412.40, 139,964.70 and 53,900.60 is: 80,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,412.40 : 139,964.70 = 53,900.60 : x
  2. Step 2: Convert to fraction form
    93,412.40/139,964.70 = 53,900.60/x
  3. Step 3: Cross multiply
    93,412.40x = 139,964.70 × 53,900.60
  4. Step 4: Simplify right side
    93,412.40x = 7,544,181,308.82
  5. Step 5: Solve for x
    x = 7,544,181,308.82/93,412.40
  6. Step 6: Final answer
    x = 80,762.10

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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.