Home / 89,014.95-122,897.96-79,438.42

Finding the Fourth Proportional to 89,014.95, 122,897.96 and 79,438.42

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Solution

The fourth proportional to 89,014.95, 122,897.96 and 79,438.42 is: 109,676.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,014.95 : 122,897.96 = 79,438.42 : x
  2. Step 2: Convert to fraction form
    89,014.95/122,897.96 = 79,438.42/x
  3. Step 3: Cross multiply
    89,014.95x = 122,897.96 × 79,438.42
  4. Step 4: Simplify right side
    89,014.95x = 9,762,819,817.95
  5. Step 5: Solve for x
    x = 9,762,819,817.95/89,014.95
  6. Step 6: Final answer
    x = 109,676.18

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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.