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Finding the Fourth Proportional to 52,900.76, 79,321.07 and 40,888.67

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Solution

The fourth proportional to 52,900.76, 79,321.07 and 40,888.67 is: 61,309.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,900.76 : 79,321.07 = 40,888.67 : x
  2. Step 2: Convert to fraction form
    52,900.76/79,321.07 = 40,888.67/x
  3. Step 3: Cross multiply
    52,900.76x = 79,321.07 × 40,888.67
  4. Step 4: Simplify right side
    52,900.76x = 3,243,332,760.89
  5. Step 5: Solve for x
    x = 3,243,332,760.89/52,900.76
  6. Step 6: Final answer
    x = 61,309.75

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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.