Home / 47,769.22-65,925.48-30,808.78

Finding the Fourth Proportional to 47,769.22, 65,925.48 and 30,808.78

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Solution

The fourth proportional to 47,769.22, 65,925.48 and 30,808.78 is: 42,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,769.22 : 65,925.48 = 30,808.78 : x
  2. Step 2: Convert to fraction form
    47,769.22/65,925.48 = 30,808.78/x
  3. Step 3: Cross multiply
    47,769.22x = 65,925.48 × 30,808.78
  4. Step 4: Simplify right side
    47,769.22x = 2,031,083,609.71
  5. Step 5: Solve for x
    x = 2,031,083,609.71/47,769.22
  6. Step 6: Final answer
    x = 42,518.67

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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.