Home / 83,047.12-114,570.12-57,911.20

Finding the Fourth Proportional to 83,047.12, 114,570.12 and 57,911.20

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Solution

The fourth proportional to 83,047.12, 114,570.12 and 57,911.20 is: 79,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,047.12 : 114,570.12 = 57,911.20 : x
  2. Step 2: Convert to fraction form
    83,047.12/114,570.12 = 57,911.20/x
  3. Step 3: Cross multiply
    83,047.12x = 114,570.12 × 57,911.20
  4. Step 4: Simplify right side
    83,047.12x = 6,634,893,133.34
  5. Step 5: Solve for x
    x = 6,634,893,133.34/83,047.12
  6. Step 6: Final answer
    x = 79,893.12

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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.