Home / 42,171.41-63,286.68-31,106.81

Finding the Fourth Proportional to 42,171.41, 63,286.68 and 31,106.81

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Solution

The fourth proportional to 42,171.41, 63,286.68 and 31,106.81 is: 46,682.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,171.41 : 63,286.68 = 31,106.81 : x
  2. Step 2: Convert to fraction form
    42,171.41/63,286.68 = 31,106.81/x
  3. Step 3: Cross multiply
    42,171.41x = 63,286.68 × 31,106.81
  4. Step 4: Simplify right side
    42,171.41x = 1,968,646,730.29
  5. Step 5: Solve for x
    x = 1,968,646,730.29/42,171.41
  6. Step 6: Final answer
    x = 46,682.02

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1.5x scale

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.