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Finding the Fourth Proportional to 51,177.96, 76,749.80 and 19,580.67

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Solution

The fourth proportional to 51,177.96, 76,749.80 and 19,580.67 is: 29,364.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.96 : 76,749.80 = 19,580.67 : x
  2. Step 2: Convert to fraction form
    51,177.96/76,749.80 = 19,580.67/x
  3. Step 3: Cross multiply
    51,177.96x = 76,749.80 × 19,580.67
  4. Step 4: Simplify right side
    51,177.96x = 1,502,812,408.46
  5. Step 5: Solve for x
    x = 1,502,812,408.46/51,177.96
  6. Step 6: Final answer
    x = 29,364.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.