Home / 56,425.30-77,866.37-30,933.07

Finding the Fourth Proportional to 56,425.30, 77,866.37 and 30,933.07

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Solution

The fourth proportional to 56,425.30, 77,866.37 and 30,933.07 is: 42,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,425.30 : 77,866.37 = 30,933.07 : x
  2. Step 2: Convert to fraction form
    56,425.30/77,866.37 = 30,933.07/x
  3. Step 3: Cross multiply
    56,425.30x = 77,866.37 × 30,933.07
  4. Step 4: Simplify right side
    56,425.30x = 2,408,645,329.86
  5. Step 5: Solve for x
    x = 2,408,645,329.86/56,425.30
  6. Step 6: Final answer
    x = 42,687.33

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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.