Home / 85,512.32-118,007.16-47,786.57

Finding the Fourth Proportional to 85,512.32, 118,007.16 and 47,786.57

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Solution

The fourth proportional to 85,512.32, 118,007.16 and 47,786.57 is: 65,945.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,512.32 : 118,007.16 = 47,786.57 : x
  2. Step 2: Convert to fraction form
    85,512.32/118,007.16 = 47,786.57/x
  3. Step 3: Cross multiply
    85,512.32x = 118,007.16 × 47,786.57
  4. Step 4: Simplify right side
    85,512.32x = 5,639,157,411.84
  5. Step 5: Solve for x
    x = 5,639,157,411.84/85,512.32
  6. Step 6: Final answer
    x = 65,945.56

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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.