Home / 45,509.12-67,907.64-40,780.98

Finding the Fourth Proportional to 45,509.12, 67,907.64 and 40,780.98

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Solution

The fourth proportional to 45,509.12, 67,907.64 and 40,780.98 is: 60,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,509.12 : 67,907.64 = 40,780.98 : x
  2. Step 2: Convert to fraction form
    45,509.12/67,907.64 = 40,780.98/x
  3. Step 3: Cross multiply
    45,509.12x = 67,907.64 × 40,780.98
  4. Step 4: Simplify right side
    45,509.12x = 2,769,340,108.69
  5. Step 5: Solve for x
    x = 2,769,340,108.69/45,509.12
  6. Step 6: Final answer
    x = 60,852.42

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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.