Home / 56,975.78-78,611.37-31,824.74

Finding the Fourth Proportional to 56,975.78, 78,611.37 and 31,824.74

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Solution

The fourth proportional to 56,975.78, 78,611.37 and 31,824.74 is: 43,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,975.78 : 78,611.37 = 31,824.74 : x
  2. Step 2: Convert to fraction form
    56,975.78/78,611.37 = 31,824.74/x
  3. Step 3: Cross multiply
    56,975.78x = 78,611.37 × 31,824.74
  4. Step 4: Simplify right side
    56,975.78x = 2,501,786,411.29
  5. Step 5: Solve for x
    x = 2,501,786,411.29/56,975.78
  6. Step 6: Final answer
    x = 43,909.65

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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.