Home / 70,461.36-105,632.64-48,219.84

Finding the Fourth Proportional to 70,461.36, 105,632.64 and 48,219.84

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Solution

The fourth proportional to 70,461.36, 105,632.64 and 48,219.84 is: 72,289.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,461.36 : 105,632.64 = 48,219.84 : x
  2. Step 2: Convert to fraction form
    70,461.36/105,632.64 = 48,219.84/x
  3. Step 3: Cross multiply
    70,461.36x = 105,632.64 × 48,219.84
  4. Step 4: Simplify right side
    70,461.36x = 5,093,588,999.58
  5. Step 5: Solve for x
    x = 5,093,588,999.58/70,461.36
  6. Step 6: Final answer
    x = 72,289.11

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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.