Home / 77,812.98-116,721.84-30,426.18

Finding the Fourth Proportional to 77,812.98, 116,721.84 and 30,426.18

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Solution

The fourth proportional to 77,812.98, 116,721.84 and 30,426.18 is: 45,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,812.98 : 116,721.84 = 30,426.18 : x
  2. Step 2: Convert to fraction form
    77,812.98/116,721.84 = 30,426.18/x
  3. Step 3: Cross multiply
    77,812.98x = 116,721.84 × 30,426.18
  4. Step 4: Simplify right side
    77,812.98x = 3,551,399,713.77
  5. Step 5: Solve for x
    x = 3,551,399,713.77/77,812.98
  6. Step 6: Final answer
    x = 45,640.20

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1.5x scale

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.