Home / 85,032.31-117,331.32-49,215.33

Finding the Fourth Proportional to 85,032.31, 117,331.32 and 49,215.33

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Solution

The fourth proportional to 85,032.31, 117,331.32 and 49,215.33 is: 67,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,032.31 : 117,331.32 = 49,215.33 : x
  2. Step 2: Convert to fraction form
    85,032.31/117,331.32 = 49,215.33/x
  3. Step 3: Cross multiply
    85,032.31x = 117,331.32 × 49,215.33
  4. Step 4: Simplify right side
    85,032.31x = 5,774,499,633.14
  5. Step 5: Solve for x
    x = 5,774,499,633.14/85,032.31
  6. Step 6: Final answer
    x = 67,909.48

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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.