Home / 75,553.31-104,278.40-43,309.54

Finding the Fourth Proportional to 75,553.31, 104,278.40 and 43,309.54

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Solution

The fourth proportional to 75,553.31, 104,278.40 and 43,309.54 is: 59,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,553.31 : 104,278.40 = 43,309.54 : x
  2. Step 2: Convert to fraction form
    75,553.31/104,278.40 = 43,309.54/x
  3. Step 3: Cross multiply
    75,553.31x = 104,278.40 × 43,309.54
  4. Step 4: Simplify right side
    75,553.31x = 4,516,249,855.76
  5. Step 5: Solve for x
    x = 4,516,249,855.76/75,553.31
  6. Step 6: Final answer
    x = 59,775.67

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1.5x scale

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.