Home / 42,774.70-64,040.55-40,447.30

Finding the Fourth Proportional to 42,774.70, 64,040.55 and 40,447.30

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Solution

The fourth proportional to 42,774.70, 64,040.55 and 40,447.30 is: 60,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,774.70 : 64,040.55 = 40,447.30 : x
  2. Step 2: Convert to fraction form
    42,774.70/64,040.55 = 40,447.30/x
  3. Step 3: Cross multiply
    42,774.70x = 64,040.55 × 40,447.30
  4. Step 4: Simplify right side
    42,774.70x = 2,590,267,338.02
  5. Step 5: Solve for x
    x = 2,590,267,338.02/42,774.70
  6. Step 6: Final answer
    x = 60,556.06

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1.5x scale

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.