Home / 74,583.07-102,898.66-42,313.89

Finding the Fourth Proportional to 74,583.07, 102,898.66 and 42,313.89

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Solution

The fourth proportional to 74,583.07, 102,898.66 and 42,313.89 is: 58,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,583.07 : 102,898.66 = 42,313.89 : x
  2. Step 2: Convert to fraction form
    74,583.07/102,898.66 = 42,313.89/x
  3. Step 3: Cross multiply
    74,583.07x = 102,898.66 × 42,313.89
  4. Step 4: Simplify right side
    74,583.07x = 4,354,042,190.61
  5. Step 5: Solve for x
    x = 4,354,042,190.61/74,583.07
  6. Step 6: Final answer
    x = 58,378.43

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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.