Home / 84,885.63-117,178.10-57,296.28

Finding the Fourth Proportional to 84,885.63, 117,178.10 and 57,296.28

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Solution

The fourth proportional to 84,885.63, 117,178.10 and 57,296.28 is: 79,093.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,885.63 : 117,178.10 = 57,296.28 : x
  2. Step 2: Convert to fraction form
    84,885.63/117,178.10 = 57,296.28/x
  3. Step 3: Cross multiply
    84,885.63x = 117,178.10 × 57,296.28
  4. Step 4: Simplify right side
    84,885.63x = 6,713,868,940.99
  5. Step 5: Solve for x
    x = 6,713,868,940.99/84,885.63
  6. Step 6: Final answer
    x = 79,093.12

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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.