Home / 56,571.68-78,066.84-31,422.80

Finding the Fourth Proportional to 56,571.68, 78,066.84 and 31,422.80

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Solution

The fourth proportional to 56,571.68, 78,066.84 and 31,422.80 is: 43,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,571.68 : 78,066.84 = 31,422.80 : x
  2. Step 2: Convert to fraction form
    56,571.68/78,066.84 = 31,422.80/x
  3. Step 3: Cross multiply
    56,571.68x = 78,066.84 × 31,422.80
  4. Step 4: Simplify right side
    56,571.68x = 2,453,078,699.95
  5. Step 5: Solve for x
    x = 2,453,078,699.95/56,571.68
  6. Step 6: Final answer
    x = 43,362.31

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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.