Home / 85,207.16-117,597.48-49,408.40

Finding the Fourth Proportional to 85,207.16, 117,597.48 and 49,408.40

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Solution

The fourth proportional to 85,207.16, 117,597.48 and 49,408.40 is: 68,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,207.16 : 117,597.48 = 49,408.40 : x
  2. Step 2: Convert to fraction form
    85,207.16/117,597.48 = 49,408.40/x
  3. Step 3: Cross multiply
    85,207.16x = 117,597.48 × 49,408.40
  4. Step 4: Simplify right side
    85,207.16x = 5,810,303,330.83
  5. Step 5: Solve for x
    x = 5,810,303,330.83/85,207.16
  6. Step 6: Final answer
    x = 68,190.32

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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.