Home / 85,823.36-118,414-51,804.96

Finding the Fourth Proportional to 85,823.36, 118,414 and 51,804.96

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Solution

The fourth proportional to 85,823.36, 118,414 and 51,804.96 is: 71,477.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,823.36 : 118,414 = 51,804.96 : x
  2. Step 2: Convert to fraction form
    85,823.36/118,414 = 51,804.96/x
  3. Step 3: Cross multiply
    85,823.36x = 118,414 × 51,804.96
  4. Step 4: Simplify right side
    85,823.36x = 6,134,432,533.44
  5. Step 5: Solve for x
    x = 6,134,432,533.44/85,823.36
  6. Step 6: Final answer
    x = 71,477.42

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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.