Home / 51,903.12-77,842.71-20,313.93

Finding the Fourth Proportional to 51,903.12, 77,842.71 and 20,313.93

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Solution

The fourth proportional to 51,903.12, 77,842.71 and 20,313.93 is: 30,466.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,903.12 : 77,842.71 = 20,313.93 : x
  2. Step 2: Convert to fraction form
    51,903.12/77,842.71 = 20,313.93/x
  3. Step 3: Cross multiply
    51,903.12x = 77,842.71 × 20,313.93
  4. Step 4: Simplify right side
    51,903.12x = 1,581,291,361.95
  5. Step 5: Solve for x
    x = 1,581,291,361.95/51,903.12
  6. Step 6: Final answer
    x = 30,466.21

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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.