Home / 85,789.36-118,360.88-51,784.88

Finding the Fourth Proportional to 85,789.36, 118,360.88 and 51,784.88

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Solution

The fourth proportional to 85,789.36, 118,360.88 and 51,784.88 is: 71,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,789.36 : 118,360.88 = 51,784.88 : x
  2. Step 2: Convert to fraction form
    85,789.36/118,360.88 = 51,784.88/x
  3. Step 3: Cross multiply
    85,789.36x = 118,360.88 × 51,784.88
  4. Step 4: Simplify right side
    85,789.36x = 6,129,303,967.49
  5. Step 5: Solve for x
    x = 6,129,303,967.49/85,789.36
  6. Step 6: Final answer
    x = 71,445.97

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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.