Home / 69,759.40-104,639.10-46,139.80

Finding the Fourth Proportional to 69,759.40, 104,639.10 and 46,139.80

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Solution

The fourth proportional to 69,759.40, 104,639.10 and 46,139.80 is: 69,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,759.40 : 104,639.10 = 46,139.80 : x
  2. Step 2: Convert to fraction form
    69,759.40/104,639.10 = 46,139.80/x
  3. Step 3: Cross multiply
    69,759.40x = 104,639.10 × 46,139.80
  4. Step 4: Simplify right side
    69,759.40x = 4,828,027,146.18
  5. Step 5: Solve for x
    x = 4,828,027,146.18/69,759.40
  6. Step 6: Final answer
    x = 69,209.70

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1.5x scale

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.