Home / 77,814.98-116,724.84-30,428.18

Finding the Fourth Proportional to 77,814.98, 116,724.84 and 30,428.18

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Solution

The fourth proportional to 77,814.98, 116,724.84 and 30,428.18 is: 45,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,814.98 : 116,724.84 = 30,428.18 : x
  2. Step 2: Convert to fraction form
    77,814.98/116,724.84 = 30,428.18/x
  3. Step 3: Cross multiply
    77,814.98x = 116,724.84 × 30,428.18
  4. Step 4: Simplify right side
    77,814.98x = 3,551,724,441.99
  5. Step 5: Solve for x
    x = 3,551,724,441.99/77,814.98
  6. Step 6: Final answer
    x = 45,643.20

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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.