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Finding the Fourth Proportional to 85,352.90, 117,769.41 and 49,047.34

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Solution

The fourth proportional to 85,352.90, 117,769.41 and 49,047.34 is: 67,675.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,352.90 : 117,769.41 = 49,047.34 : x
  2. Step 2: Convert to fraction form
    85,352.90/117,769.41 = 49,047.34/x
  3. Step 3: Cross multiply
    85,352.90x = 117,769.41 × 49,047.34
  4. Step 4: Simplify right side
    85,352.90x = 5,776,275,705.02
  5. Step 5: Solve for x
    x = 5,776,275,705.02/85,352.90
  6. Step 6: Final answer
    x = 67,675.21

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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.