Home / 85,220.64-117,614.60-51,246.51

Finding the Fourth Proportional to 85,220.64, 117,614.60 and 51,246.51

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Solution

The fourth proportional to 85,220.64, 117,614.60 and 51,246.51 is: 70,726.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.64 : 117,614.60 = 51,246.51 : x
  2. Step 2: Convert to fraction form
    85,220.64/117,614.60 = 51,246.51/x
  3. Step 3: Cross multiply
    85,220.64x = 117,614.60 × 51,246.51
  4. Step 4: Simplify right side
    85,220.64x = 6,027,337,775.05
  5. Step 5: Solve for x
    x = 6,027,337,775.05/85,220.64
  6. Step 6: Final answer
    x = 70,726.27

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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.