Home / 62,807.49-86,662.08-40,129.02

Finding the Fourth Proportional to 62,807.49, 86,662.08 and 40,129.02

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Solution

The fourth proportional to 62,807.49, 86,662.08 and 40,129.02 is: 55,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,807.49 : 86,662.08 = 40,129.02 : x
  2. Step 2: Convert to fraction form
    62,807.49/86,662.08 = 40,129.02/x
  3. Step 3: Cross multiply
    62,807.49x = 86,662.08 × 40,129.02
  4. Step 4: Simplify right side
    62,807.49x = 3,477,664,341.56
  5. Step 5: Solve for x
    x = 3,477,664,341.56/62,807.49
  6. Step 6: Final answer
    x = 55,370.22

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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.