Home / 93,143.81-139,637.34-40,513.65

Finding the Fourth Proportional to 93,143.81, 139,637.34 and 40,513.65

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Solution

The fourth proportional to 93,143.81, 139,637.34 and 40,513.65 is: 60,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,143.81 : 139,637.34 = 40,513.65 : x
  2. Step 2: Convert to fraction form
    93,143.81/139,637.34 = 40,513.65/x
  3. Step 3: Cross multiply
    93,143.81x = 139,637.34 × 40,513.65
  4. Step 4: Simplify right side
    93,143.81x = 5,657,218,668.78
  5. Step 5: Solve for x
    x = 5,657,218,668.78/93,143.81
  6. Step 6: Final answer
    x = 60,736.39

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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.