Home / 75,971.70-113,973.93-40,903.20

Finding the Fourth Proportional to 75,971.70, 113,973.93 and 40,903.20

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Solution

The fourth proportional to 75,971.70, 113,973.93 and 40,903.20 is: 61,363.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,971.70 : 113,973.93 = 40,903.20 : x
  2. Step 2: Convert to fraction form
    75,971.70/113,973.93 = 40,903.20/x
  3. Step 3: Cross multiply
    75,971.70x = 113,973.93 × 40,903.20
  4. Step 4: Simplify right side
    75,971.70x = 4,661,898,453.58
  5. Step 5: Solve for x
    x = 4,661,898,453.58/75,971.70
  6. Step 6: Final answer
    x = 61,363.62

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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.