Home / 85,317.47-117,741.75-47,591.72

Finding the Fourth Proportional to 85,317.47, 117,741.75 and 47,591.72

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Solution

The fourth proportional to 85,317.47, 117,741.75 and 47,591.72 is: 65,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,317.47 : 117,741.75 = 47,591.72 : x
  2. Step 2: Convert to fraction form
    85,317.47/117,741.75 = 47,591.72/x
  3. Step 3: Cross multiply
    85,317.47x = 117,741.75 × 47,591.72
  4. Step 4: Simplify right side
    85,317.47x = 5,603,532,340.37
  5. Step 5: Solve for x
    x = 5,603,532,340.37/85,317.47
  6. Step 6: Final answer
    x = 65,678.61

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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.