Home / 56,441.89-77,890.71-30,950.58

Finding the Fourth Proportional to 56,441.89, 77,890.71 and 30,950.58

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Solution

The fourth proportional to 56,441.89, 77,890.71 and 30,950.58 is: 42,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,441.89 : 77,890.71 = 30,950.58 : x
  2. Step 2: Convert to fraction form
    56,441.89/77,890.71 = 30,950.58/x
  3. Step 3: Cross multiply
    56,441.89x = 77,890.71 × 30,950.58
  4. Step 4: Simplify right side
    56,441.89x = 2,410,762,447.03
  5. Step 5: Solve for x
    x = 2,410,762,447.03/56,441.89
  6. Step 6: Final answer
    x = 42,712.29

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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.