Home / 85,621.54-118,151.31-47,888.50

Finding the Fourth Proportional to 85,621.54, 118,151.31 and 47,888.50

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Solution

The fourth proportional to 85,621.54, 118,151.31 and 47,888.50 is: 66,082.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.54 : 118,151.31 = 47,888.50 : x
  2. Step 2: Convert to fraction form
    85,621.54/118,151.31 = 47,888.50/x
  3. Step 3: Cross multiply
    85,621.54x = 118,151.31 × 47,888.50
  4. Step 4: Simplify right side
    85,621.54x = 5,658,089,008.94
  5. Step 5: Solve for x
    x = 5,658,089,008.94/85,621.54
  6. Step 6: Final answer
    x = 66,082.54

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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.