Home / 56,919.49-78,548.06-31,426.16

Finding the Fourth Proportional to 56,919.49, 78,548.06 and 31,426.16

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Solution

The fourth proportional to 56,919.49, 78,548.06 and 31,426.16 is: 43,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.49 : 78,548.06 = 31,426.16 : x
  2. Step 2: Convert to fraction form
    56,919.49/78,548.06 = 31,426.16/x
  3. Step 3: Cross multiply
    56,919.49x = 78,548.06 × 31,426.16
  4. Step 4: Simplify right side
    56,919.49x = 2,468,463,744.12
  5. Step 5: Solve for x
    x = 2,468,463,744.12/56,919.49
  6. Step 6: Final answer
    x = 43,367.64

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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.