Home / 85,417.31-117,883.19-47,698.85

Finding the Fourth Proportional to 85,417.31, 117,883.19 and 47,698.85

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Solution

The fourth proportional to 85,417.31, 117,883.19 and 47,698.85 is: 65,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,417.31 : 117,883.19 = 47,698.85 : x
  2. Step 2: Convert to fraction form
    85,417.31/117,883.19 = 47,698.85/x
  3. Step 3: Cross multiply
    85,417.31x = 117,883.19 × 47,698.85
  4. Step 4: Simplify right side
    85,417.31x = 5,622,892,653.55
  5. Step 5: Solve for x
    x = 5,622,892,653.55/85,417.31
  6. Step 6: Final answer
    x = 65,828.49

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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.