Home / 43,364.23-65,045.32-19,990.67

Finding the Fourth Proportional to 43,364.23, 65,045.32 and 19,990.67

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Solution

The fourth proportional to 43,364.23, 65,045.32 and 19,990.67 is: 29,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,364.23 : 65,045.32 = 19,990.67 : x
  2. Step 2: Convert to fraction form
    43,364.23/65,045.32 = 19,990.67/x
  3. Step 3: Cross multiply
    43,364.23x = 65,045.32 × 19,990.67
  4. Step 4: Simplify right side
    43,364.23x = 1,300,299,151.96
  5. Step 5: Solve for x
    x = 1,300,299,151.96/43,364.23
  6. Step 6: Final answer
    x = 29,985.53

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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.