Home / 56,212.35-77,571.72-30,717.60

Finding the Fourth Proportional to 56,212.35, 77,571.72 and 30,717.60

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Solution

The fourth proportional to 56,212.35, 77,571.72 and 30,717.60 is: 42,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,212.35 : 77,571.72 = 30,717.60 : x
  2. Step 2: Convert to fraction form
    56,212.35/77,571.72 = 30,717.60/x
  3. Step 3: Cross multiply
    56,212.35x = 77,571.72 × 30,717.60
  4. Step 4: Simplify right side
    56,212.35x = 2,382,817,066.27
  5. Step 5: Solve for x
    x = 2,382,817,066.27/56,212.35
  6. Step 6: Final answer
    x = 42,389.57

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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.