Home / 85,162.53-117,435.18-63,618.51

Finding the Fourth Proportional to 85,162.53, 117,435.18 and 63,618.51

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Solution

The fourth proportional to 85,162.53, 117,435.18 and 63,618.51 is: 87,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,162.53 : 117,435.18 = 63,618.51 : x
  2. Step 2: Convert to fraction form
    85,162.53/117,435.18 = 63,618.51/x
  3. Step 3: Cross multiply
    85,162.53x = 117,435.18 × 63,618.51
  4. Step 4: Simplify right side
    85,162.53x = 7,471,051,173.18
  5. Step 5: Solve for x
    x = 7,471,051,173.18/85,162.53
  6. Step 6: Final answer
    x = 87,726.98

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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.