Home / 85,886.32-118,519.56-51,914.72

Finding the Fourth Proportional to 85,886.32, 118,519.56 and 51,914.72

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Solution

The fourth proportional to 85,886.32, 118,519.56 and 51,914.72 is: 71,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,886.32 : 118,519.56 = 51,914.72 : x
  2. Step 2: Convert to fraction form
    85,886.32/118,519.56 = 51,914.72/x
  3. Step 3: Cross multiply
    85,886.32x = 118,519.56 × 51,914.72
  4. Step 4: Simplify right side
    85,886.32x = 6,152,909,771.92
  5. Step 5: Solve for x
    x = 6,152,909,771.92/85,886.32
  6. Step 6: Final answer
    x = 71,640.16

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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.