Home / 71,257.54-98,339.25-39,427.78

Finding the Fourth Proportional to 71,257.54, 98,339.25 and 39,427.78

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Solution

The fourth proportional to 71,257.54, 98,339.25 and 39,427.78 is: 54,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,257.54 : 98,339.25 = 39,427.78 : x
  2. Step 2: Convert to fraction form
    71,257.54/98,339.25 = 39,427.78/x
  3. Step 3: Cross multiply
    71,257.54x = 98,339.25 × 39,427.78
  4. Step 4: Simplify right side
    71,257.54x = 3,877,298,314.37
  5. Step 5: Solve for x
    x = 3,877,298,314.37/71,257.54
  6. Step 6: Final answer
    x = 54,412.46

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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.