Home / 51,403.92-70,857.18-47,279.67

Finding the Fourth Proportional to 51,403.92, 70,857.18 and 47,279.67

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Solution

The fourth proportional to 51,403.92, 70,857.18 and 47,279.67 is: 65,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,403.92 : 70,857.18 = 47,279.67 : x
  2. Step 2: Convert to fraction form
    51,403.92/70,857.18 = 47,279.67/x
  3. Step 3: Cross multiply
    51,403.92x = 70,857.18 × 47,279.67
  4. Step 4: Simplify right side
    51,403.92x = 3,350,104,087.53
  5. Step 5: Solve for x
    x = 3,350,104,087.53/51,403.92
  6. Step 6: Final answer
    x = 65,172.15

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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.