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Finding the Fourth Proportional to 93,452.90, 128,960.50 and 53,162.87

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Solution

The fourth proportional to 93,452.90, 128,960.50 and 53,162.87 is: 73,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,452.90 : 128,960.50 = 53,162.87 : x
  2. Step 2: Convert to fraction form
    93,452.90/128,960.50 = 53,162.87/x
  3. Step 3: Cross multiply
    93,452.90x = 128,960.50 × 53,162.87
  4. Step 4: Simplify right side
    93,452.90x = 6,855,910,030.82
  5. Step 5: Solve for x
    x = 6,855,910,030.82/93,452.90
  6. Step 6: Final answer
    x = 73,362.20

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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.