Home / 54,571.20-75,312.63-30,696.45

Finding the Fourth Proportional to 54,571.20, 75,312.63 and 30,696.45

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Solution

The fourth proportional to 54,571.20, 75,312.63 and 30,696.45 is: 42,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,571.20 : 75,312.63 = 30,696.45 : x
  2. Step 2: Convert to fraction form
    54,571.20/75,312.63 = 30,696.45/x
  3. Step 3: Cross multiply
    54,571.20x = 75,312.63 × 30,696.45
  4. Step 4: Simplify right side
    54,571.20x = 2,311,830,381.16
  5. Step 5: Solve for x
    x = 2,311,830,381.16/54,571.20
  6. Step 6: Final answer
    x = 42,363.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.