Home / 85,208.21-117,587.56-51,236.15

Finding the Fourth Proportional to 85,208.21, 117,587.56 and 51,236.15

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Solution

The fourth proportional to 85,208.21, 117,587.56 and 51,236.15 is: 70,706.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.21 : 117,587.56 = 51,236.15 : x
  2. Step 2: Convert to fraction form
    85,208.21/117,587.56 = 51,236.15/x
  3. Step 3: Cross multiply
    85,208.21x = 117,587.56 × 51,236.15
  4. Step 4: Simplify right side
    85,208.21x = 6,024,733,862.29
  5. Step 5: Solve for x
    x = 6,024,733,862.29/85,208.21
  6. Step 6: Final answer
    x = 70,706.03

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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.