Home / 74,474.08-102,654.24-61,021.60

Finding the Fourth Proportional to 74,474.08, 102,654.24 and 61,021.60

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Solution

The fourth proportional to 74,474.08, 102,654.24 and 61,021.60 is: 84,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,474.08 : 102,654.24 = 61,021.60 : x
  2. Step 2: Convert to fraction form
    74,474.08/102,654.24 = 61,021.60/x
  3. Step 3: Cross multiply
    74,474.08x = 102,654.24 × 61,021.60
  4. Step 4: Simplify right side
    74,474.08x = 6,264,125,971.58
  5. Step 5: Solve for x
    x = 6,264,125,971.58/74,474.08
  6. Step 6: Final answer
    x = 84,111.49

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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.