Home / 84,776.16-117,012.60-57,929.52

Finding the Fourth Proportional to 84,776.16, 117,012.60 and 57,929.52

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Solution

The fourth proportional to 84,776.16, 117,012.60 and 57,929.52 is: 79,957.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,776.16 : 117,012.60 = 57,929.52 : x
  2. Step 2: Convert to fraction form
    84,776.16/117,012.60 = 57,929.52/x
  3. Step 3: Cross multiply
    84,776.16x = 117,012.60 × 57,929.52
  4. Step 4: Simplify right side
    84,776.16x = 6,778,483,751.95
  5. Step 5: Solve for x
    x = 6,778,483,751.95/84,776.16
  6. Step 6: Final answer
    x = 79,957.43

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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.