Home / 64,768.15-89,378.40-36,087.94

Finding the Fourth Proportional to 64,768.15, 89,378.40 and 36,087.94

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Solution

The fourth proportional to 64,768.15, 89,378.40 and 36,087.94 is: 49,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,768.15 : 89,378.40 = 36,087.94 : x
  2. Step 2: Convert to fraction form
    64,768.15/89,378.40 = 36,087.94/x
  3. Step 3: Cross multiply
    64,768.15x = 89,378.40 × 36,087.94
  4. Step 4: Simplify right side
    64,768.15x = 3,225,482,336.50
  5. Step 5: Solve for x
    x = 3,225,482,336.50/64,768.15
  6. Step 6: Final answer
    x = 49,800.44

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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.