Home / 89,739.84-134,611.92-42,941.28

Finding the Fourth Proportional to 89,739.84, 134,611.92 and 42,941.28

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Solution

The fourth proportional to 89,739.84, 134,611.92 and 42,941.28 is: 64,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,739.84 : 134,611.92 = 42,941.28 : x
  2. Step 2: Convert to fraction form
    89,739.84/134,611.92 = 42,941.28/x
  3. Step 3: Cross multiply
    89,739.84x = 134,611.92 × 42,941.28
  4. Step 4: Simplify right side
    89,739.84x = 5,780,408,148.06
  5. Step 5: Solve for x
    x = 5,780,408,148.06/89,739.84
  6. Step 6: Final answer
    x = 64,412.95

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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.