Home / 74,583.38-102,901.75-42,312.62

Finding the Fourth Proportional to 74,583.38, 102,901.75 and 42,312.62

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Solution

The fourth proportional to 74,583.38, 102,901.75 and 42,312.62 is: 58,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,583.38 : 102,901.75 = 42,312.62 : x
  2. Step 2: Convert to fraction form
    74,583.38/102,901.75 = 42,312.62/x
  3. Step 3: Cross multiply
    74,583.38x = 102,901.75 × 42,312.62
  4. Step 4: Simplify right side
    74,583.38x = 4,354,042,024.79
  5. Step 5: Solve for x
    x = 4,354,042,024.79/74,583.38
  6. Step 6: Final answer
    x = 58,378.18

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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.