Home / 56,869.94-78,478.62-31,376.36

Finding the Fourth Proportional to 56,869.94, 78,478.62 and 31,376.36

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Solution

The fourth proportional to 56,869.94, 78,478.62 and 31,376.36 is: 43,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,869.94 : 78,478.62 = 31,376.36 : x
  2. Step 2: Convert to fraction form
    56,869.94/78,478.62 = 31,376.36/x
  3. Step 3: Cross multiply
    56,869.94x = 78,478.62 × 31,376.36
  4. Step 4: Simplify right side
    56,869.94x = 2,462,373,433.42
  5. Step 5: Solve for x
    x = 2,462,373,433.42/56,869.94
  6. Step 6: Final answer
    x = 43,298.33

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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.