Home / 79,113.23-118,586.42-54,146.60

Finding the Fourth Proportional to 79,113.23, 118,586.42 and 54,146.60

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Solution

The fourth proportional to 79,113.23, 118,586.42 and 54,146.60 is: 81,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,113.23 : 118,586.42 = 54,146.60 : x
  2. Step 2: Convert to fraction form
    79,113.23/118,586.42 = 54,146.60/x
  3. Step 3: Cross multiply
    79,113.23x = 118,586.42 × 54,146.60
  4. Step 4: Simplify right side
    79,113.23x = 6,421,051,178.44
  5. Step 5: Solve for x
    x = 6,421,051,178.44/79,113.23
  6. Step 6: Final answer
    x = 81,162.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.