Home / 78,577.51-117,884.57-22,418.39

Finding the Fourth Proportional to 78,577.51, 117,884.57 and 22,418.39

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Solution

The fourth proportional to 78,577.51, 117,884.57 and 22,418.39 is: 33,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,577.51 : 117,884.57 = 22,418.39 : x
  2. Step 2: Convert to fraction form
    78,577.51/117,884.57 = 22,418.39/x
  3. Step 3: Cross multiply
    78,577.51x = 117,884.57 × 22,418.39
  4. Step 4: Simplify right side
    78,577.51x = 2,642,781,784.76
  5. Step 5: Solve for x
    x = 2,642,781,784.76/78,577.51
  6. Step 6: Final answer
    x = 33,632.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.