Home / 55,765.40-76,956.32-30,271.76

Finding the Fourth Proportional to 55,765.40, 76,956.32 and 30,271.76

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Solution

The fourth proportional to 55,765.40, 76,956.32 and 30,271.76 is: 41,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,765.40 : 76,956.32 = 30,271.76 : x
  2. Step 2: Convert to fraction form
    55,765.40/76,956.32 = 30,271.76/x
  3. Step 3: Cross multiply
    55,765.40x = 76,956.32 × 30,271.76
  4. Step 4: Simplify right side
    55,765.40x = 2,329,603,249.52
  5. Step 5: Solve for x
    x = 2,329,603,249.52/55,765.40
  6. Step 6: Final answer
    x = 41,775.07

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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.