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Finding the Fourth Proportional to 93,127.94, 128,519.34 and 57,338.60

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Solution

The fourth proportional to 93,127.94, 128,519.34 and 57,338.60 is: 79,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,127.94 : 128,519.34 = 57,338.60 : x
  2. Step 2: Convert to fraction form
    93,127.94/128,519.34 = 57,338.60/x
  3. Step 3: Cross multiply
    93,127.94x = 128,519.34 × 57,338.60
  4. Step 4: Simplify right side
    93,127.94x = 7,369,119,216.36
  5. Step 5: Solve for x
    x = 7,369,119,216.36/93,127.94
  6. Step 6: Final answer
    x = 79,128.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.