Home / 85,209.40-117,597.72-51,228.96

Finding the Fourth Proportional to 85,209.40, 117,597.72 and 51,228.96

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Solution

The fourth proportional to 85,209.40, 117,597.72 and 51,228.96 is: 70,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,209.40 : 117,597.72 = 51,228.96 : x
  2. Step 2: Convert to fraction form
    85,209.40/117,597.72 = 51,228.96/x
  3. Step 3: Cross multiply
    85,209.40x = 117,597.72 × 51,228.96
  4. Step 4: Simplify right side
    85,209.40x = 6,024,408,893.97
  5. Step 5: Solve for x
    x = 6,024,408,893.97/85,209.40
  6. Step 6: Final answer
    x = 70,701.22

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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.