Home / 93,020.29-139,527.30-40,429.78

Finding the Fourth Proportional to 93,020.29, 139,527.30 and 40,429.78

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Solution

The fourth proportional to 93,020.29, 139,527.30 and 40,429.78 is: 60,643.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,020.29 : 139,527.30 = 40,429.78 : x
  2. Step 2: Convert to fraction form
    93,020.29/139,527.30 = 40,429.78/x
  3. Step 3: Cross multiply
    93,020.29x = 139,527.30 × 40,429.78
  4. Step 4: Simplify right side
    93,020.29x = 5,641,058,042.99
  5. Step 5: Solve for x
    x = 5,641,058,042.99/93,020.29
  6. Step 6: Final answer
    x = 60,643.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.