Home / 62,448.64-86,171.40-39,778.32

Finding the Fourth Proportional to 62,448.64, 86,171.40 and 39,778.32

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Solution

The fourth proportional to 62,448.64, 86,171.40 and 39,778.32 is: 54,889.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,448.64 : 86,171.40 = 39,778.32 : x
  2. Step 2: Convert to fraction form
    62,448.64/86,171.40 = 39,778.32/x
  3. Step 3: Cross multiply
    62,448.64x = 86,171.40 × 39,778.32
  4. Step 4: Simplify right side
    62,448.64x = 3,427,753,847.19
  5. Step 5: Solve for x
    x = 3,427,753,847.19/62,448.64
  6. Step 6: Final answer
    x = 54,889.17

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1.5x scale

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.