Home / 40,745.40-56,230.98-30,655.77

Finding the Fourth Proportional to 40,745.40, 56,230.98 and 30,655.77

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Solution

The fourth proportional to 40,745.40, 56,230.98 and 30,655.77 is: 42,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,745.40 : 56,230.98 = 30,655.77 : x
  2. Step 2: Convert to fraction form
    40,745.40/56,230.98 = 30,655.77/x
  3. Step 3: Cross multiply
    40,745.40x = 56,230.98 × 30,655.77
  4. Step 4: Simplify right side
    40,745.40x = 1,723,803,989.75
  5. Step 5: Solve for x
    x = 1,723,803,989.75/40,745.40
  6. Step 6: Final answer
    x = 42,306.71

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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.