Home / 56,837.75-78,435.06-31,346.47

Finding the Fourth Proportional to 56,837.75, 78,435.06 and 31,346.47

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Solution

The fourth proportional to 56,837.75, 78,435.06 and 31,346.47 is: 43,257.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,837.75 : 78,435.06 = 31,346.47 : x
  2. Step 2: Convert to fraction form
    56,837.75/78,435.06 = 31,346.47/x
  3. Step 3: Cross multiply
    56,837.75x = 78,435.06 × 31,346.47
  4. Step 4: Simplify right side
    56,837.75x = 2,458,661,941.60
  5. Step 5: Solve for x
    x = 2,458,661,941.60/56,837.75
  6. Step 6: Final answer
    x = 43,257.55

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1.5x scale

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.