Home / 42,313.28-63,345.28-31,269.28

Finding the Fourth Proportional to 42,313.28, 63,345.28 and 31,269.28

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Solution

The fourth proportional to 42,313.28, 63,345.28 and 31,269.28 is: 46,811.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,313.28 : 63,345.28 = 31,269.28 : x
  2. Step 2: Convert to fraction form
    42,313.28/63,345.28 = 31,269.28/x
  3. Step 3: Cross multiply
    42,313.28x = 63,345.28 × 31,269.28
  4. Step 4: Simplify right side
    42,313.28x = 1,980,761,297.00
  5. Step 5: Solve for x
    x = 1,980,761,297.00/42,313.28
  6. Step 6: Final answer
    x = 46,811.81

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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.