Home / 40,907.49-56,480.30-31,330.45

Finding the Fourth Proportional to 40,907.49, 56,480.30 and 31,330.45

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Solution

The fourth proportional to 40,907.49, 56,480.30 and 31,330.45 is: 43,257.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,907.49 : 56,480.30 = 31,330.45 : x
  2. Step 2: Convert to fraction form
    40,907.49/56,480.30 = 31,330.45/x
  3. Step 3: Cross multiply
    40,907.49x = 56,480.30 × 31,330.45
  4. Step 4: Simplify right side
    40,907.49x = 1,769,553,215.14
  5. Step 5: Solve for x
    x = 1,769,553,215.14/40,907.49
  6. Step 6: Final answer
    x = 43,257.44

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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.