Home / 72,626.40-100,220.64-48,749.76

Finding the Fourth Proportional to 72,626.40, 100,220.64 and 48,749.76

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Solution

The fourth proportional to 72,626.40, 100,220.64 and 48,749.76 is: 67,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.40 : 100,220.64 = 48,749.76 : x
  2. Step 2: Convert to fraction form
    72,626.40/100,220.64 = 48,749.76/x
  3. Step 3: Cross multiply
    72,626.40x = 100,220.64 × 48,749.76
  4. Step 4: Simplify right side
    72,626.40x = 4,885,732,147.05
  5. Step 5: Solve for x
    x = 4,885,732,147.05/72,626.40
  6. Step 6: Final answer
    x = 67,272.12

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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.