Home / 56,383.09-77,805.36-30,884.39

Finding the Fourth Proportional to 56,383.09, 77,805.36 and 30,884.39

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Solution

The fourth proportional to 56,383.09, 77,805.36 and 30,884.39 is: 42,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,383.09 : 77,805.36 = 30,884.39 : x
  2. Step 2: Convert to fraction form
    56,383.09/77,805.36 = 30,884.39/x
  3. Step 3: Cross multiply
    56,383.09x = 77,805.36 × 30,884.39
  4. Step 4: Simplify right side
    56,383.09x = 2,402,970,985.07
  5. Step 5: Solve for x
    x = 2,402,970,985.07/56,383.09
  6. Step 6: Final answer
    x = 42,618.65

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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.