Home / 69,443.16-104,124.61-61,139.85

Finding the Fourth Proportional to 69,443.16, 104,124.61 and 61,139.85

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Solution

The fourth proportional to 69,443.16, 104,124.61 and 61,139.85 is: 91,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,443.16 : 104,124.61 = 61,139.85 : x
  2. Step 2: Convert to fraction form
    69,443.16/104,124.61 = 61,139.85/x
  3. Step 3: Cross multiply
    69,443.16x = 104,124.61 × 61,139.85
  4. Step 4: Simplify right side
    69,443.16x = 6,366,163,036.71
  5. Step 5: Solve for x
    x = 6,366,163,036.71/69,443.16
  6. Step 6: Final answer
    x = 91,674.44

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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.