Home / 76,353.81-113,910.75-72,220.38

Finding the Fourth Proportional to 76,353.81, 113,910.75 and 72,220.38

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Solution

The fourth proportional to 76,353.81, 113,910.75 and 72,220.38 is: 107,744.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,353.81 : 113,910.75 = 72,220.38 : x
  2. Step 2: Convert to fraction form
    76,353.81/113,910.75 = 72,220.38/x
  3. Step 3: Cross multiply
    76,353.81x = 113,910.75 × 72,220.38
  4. Step 4: Simplify right side
    76,353.81x = 8,226,677,817.81
  5. Step 5: Solve for x
    x = 8,226,677,817.81/76,353.81
  6. Step 6: Final answer
    x = 107,744.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.