Home / 71,657.41-98,884.50-39,828.36

Finding the Fourth Proportional to 71,657.41, 98,884.50 and 39,828.36

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Solution

The fourth proportional to 71,657.41, 98,884.50 and 39,828.36 is: 54,961.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,657.41 : 98,884.50 = 39,828.36 : x
  2. Step 2: Convert to fraction form
    71,657.41/98,884.50 = 39,828.36/x
  3. Step 3: Cross multiply
    71,657.41x = 98,884.50 × 39,828.36
  4. Step 4: Simplify right side
    71,657.41x = 3,938,407,129.66
  5. Step 5: Solve for x
    x = 3,938,407,129.66/71,657.41
  6. Step 6: Final answer
    x = 54,961.62

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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.