Home / 40,749.40-61,124.10-30,907.90

Finding the Fourth Proportional to 40,749.40, 61,124.10 and 30,907.90

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Solution

The fourth proportional to 40,749.40, 61,124.10 and 30,907.90 is: 46,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,749.40 : 61,124.10 = 30,907.90 : x
  2. Step 2: Convert to fraction form
    40,749.40/61,124.10 = 30,907.90/x
  3. Step 3: Cross multiply
    40,749.40x = 61,124.10 × 30,907.90
  4. Step 4: Simplify right side
    40,749.40x = 1,889,217,570.39
  5. Step 5: Solve for x
    x = 1,889,217,570.39/40,749.40
  6. Step 6: Final answer
    x = 46,361.85

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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.