Home / 85,219.84-117,603.65-51,247.90

Finding the Fourth Proportional to 85,219.84, 117,603.65 and 51,247.90

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Solution

The fourth proportional to 85,219.84, 117,603.65 and 51,247.90 is: 70,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,219.84 : 117,603.65 = 51,247.90 : x
  2. Step 2: Convert to fraction form
    85,219.84/117,603.65 = 51,247.90/x
  3. Step 3: Cross multiply
    85,219.84x = 117,603.65 × 51,247.90
  4. Step 4: Simplify right side
    85,219.84x = 6,026,939,250.58
  5. Step 5: Solve for x
    x = 6,026,939,250.58/85,219.84
  6. Step 6: Final answer
    x = 70,722.26

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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.