Home / 93,474.06-128,906.55-61,587.42

Finding the Fourth Proportional to 93,474.06, 128,906.55 and 61,587.42

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Solution

The fourth proportional to 93,474.06, 128,906.55 and 61,587.42 is: 84,932.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,474.06 : 128,906.55 = 61,587.42 : x
  2. Step 2: Convert to fraction form
    93,474.06/128,906.55 = 61,587.42/x
  3. Step 3: Cross multiply
    93,474.06x = 128,906.55 × 61,587.42
  4. Step 4: Simplify right side
    93,474.06x = 7,939,021,835.60
  5. Step 5: Solve for x
    x = 7,939,021,835.60/93,474.06
  6. Step 6: Final answer
    x = 84,932.89

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Why These Related Problems?

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