Home / 56,221.38-77,582.88-30,729.06

Finding the Fourth Proportional to 56,221.38, 77,582.88 and 30,729.06

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Solution

The fourth proportional to 56,221.38, 77,582.88 and 30,729.06 is: 42,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.38 : 77,582.88 = 30,729.06 : x
  2. Step 2: Convert to fraction form
    56,221.38/77,582.88 = 30,729.06/x
  3. Step 3: Cross multiply
    56,221.38x = 77,582.88 × 30,729.06
  4. Step 4: Simplify right side
    56,221.38x = 2,384,048,974.49
  5. Step 5: Solve for x
    x = 2,384,048,974.49/56,221.38
  6. Step 6: Final answer
    x = 42,404.67

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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.