Home / 72,749.03-100,407.47-45,537.73

Finding the Fourth Proportional to 72,749.03, 100,407.47 and 45,537.73

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Solution

The fourth proportional to 72,749.03, 100,407.47 and 45,537.73 is: 62,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,749.03 : 100,407.47 = 45,537.73 : x
  2. Step 2: Convert to fraction form
    72,749.03/100,407.47 = 45,537.73/x
  3. Step 3: Cross multiply
    72,749.03x = 100,407.47 × 45,537.73
  4. Step 4: Simplify right side
    72,749.03x = 4,572,327,780.14
  5. Step 5: Solve for x
    x = 4,572,327,780.14/72,749.03
  6. Step 6: Final answer
    x = 62,850.71

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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.