Home / 85,106.72-117,438.36-49,308.32

Finding the Fourth Proportional to 85,106.72, 117,438.36 and 49,308.32

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Solution

The fourth proportional to 85,106.72, 117,438.36 and 49,308.32 is: 68,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,106.72 : 117,438.36 = 49,308.32 : x
  2. Step 2: Convert to fraction form
    85,106.72/117,438.36 = 49,308.32/x
  3. Step 3: Cross multiply
    85,106.72x = 117,438.36 × 49,308.32
  4. Step 4: Simplify right side
    85,106.72x = 5,790,688,235.16
  5. Step 5: Solve for x
    x = 5,790,688,235.16/85,106.72
  6. Step 6: Final answer
    x = 68,040.32

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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.