Home / 93,143.04-139,680-39,828.48

Finding the Fourth Proportional to 93,143.04, 139,680 and 39,828.48

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Solution

The fourth proportional to 93,143.04, 139,680 and 39,828.48 is: 59,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,143.04 : 139,680 = 39,828.48 : x
  2. Step 2: Convert to fraction form
    93,143.04/139,680 = 39,828.48/x
  3. Step 3: Cross multiply
    93,143.04x = 139,680 × 39,828.48
  4. Step 4: Simplify right side
    93,143.04x = 5,563,242,086.40
  5. Step 5: Solve for x
    x = 5,563,242,086.40/93,143.04
  6. Step 6: Final answer
    x = 59,727.94

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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.