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Finding the Fourth Proportional to 93,019.80, 139,526.54 and 40,429.28

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Solution

The fourth proportional to 93,019.80, 139,526.54 and 40,429.28 is: 60,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,019.80 : 139,526.54 = 40,429.28 : x
  2. Step 2: Convert to fraction form
    93,019.80/139,526.54 = 40,429.28/x
  3. Step 3: Cross multiply
    93,019.80x = 139,526.54 × 40,429.28
  4. Step 4: Simplify right side
    93,019.80x = 5,640,957,553.09
  5. Step 5: Solve for x
    x = 5,640,957,553.09/93,019.80
  6. Step 6: Final answer
    x = 60,642.55

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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.