Home / 56,027.25-77,322.47-30,881.61

Finding the Fourth Proportional to 56,027.25, 77,322.47 and 30,881.61

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Solution

The fourth proportional to 56,027.25, 77,322.47 and 30,881.61 is: 42,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,027.25 : 77,322.47 = 30,881.61 : x
  2. Step 2: Convert to fraction form
    56,027.25/77,322.47 = 30,881.61/x
  3. Step 3: Cross multiply
    56,027.25x = 77,322.47 × 30,881.61
  4. Step 4: Simplify right side
    56,027.25x = 2,387,842,208.37
  5. Step 5: Solve for x
    x = 2,387,842,208.37/56,027.25
  6. Step 6: Final answer
    x = 42,619.30

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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.