Home / 51,688.74-77,544.87-18,412.32

Finding the Fourth Proportional to 51,688.74, 77,544.87 and 18,412.32

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Solution

The fourth proportional to 51,688.74, 77,544.87 and 18,412.32 is: 27,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,688.74 : 77,544.87 = 18,412.32 : x
  2. Step 2: Convert to fraction form
    51,688.74/77,544.87 = 18,412.32/x
  3. Step 3: Cross multiply
    51,688.74x = 77,544.87 × 18,412.32
  4. Step 4: Simplify right side
    51,688.74x = 1,427,780,960.80
  5. Step 5: Solve for x
    x = 1,427,780,960.80/51,688.74
  6. Step 6: Final answer
    x = 27,622.67

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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.