Home / 90,916.74-125,583.36-69,274.56

Finding the Fourth Proportional to 90,916.74, 125,583.36 and 69,274.56

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Solution

The fourth proportional to 90,916.74, 125,583.36 and 69,274.56 is: 95,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,916.74 : 125,583.36 = 69,274.56 : x
  2. Step 2: Convert to fraction form
    90,916.74/125,583.36 = 69,274.56/x
  3. Step 3: Cross multiply
    90,916.74x = 125,583.36 × 69,274.56
  4. Step 4: Simplify right side
    90,916.74x = 8,699,732,007.32
  5. Step 5: Solve for x
    x = 8,699,732,007.32/90,916.74
  6. Step 6: Final answer
    x = 95,689.00

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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.