Home / 69,128.69-103,587.40-46,555.90

Finding the Fourth Proportional to 69,128.69, 103,587.40 and 46,555.90

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Solution

The fourth proportional to 69,128.69, 103,587.40 and 46,555.90 is: 69,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,128.69 : 103,587.40 = 46,555.90 : x
  2. Step 2: Convert to fraction form
    69,128.69/103,587.40 = 46,555.90/x
  3. Step 3: Cross multiply
    69,128.69x = 103,587.40 × 46,555.90
  4. Step 4: Simplify right side
    69,128.69x = 4,822,604,635.66
  5. Step 5: Solve for x
    x = 4,822,604,635.66/69,128.69
  6. Step 6: Final answer
    x = 69,762.71

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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.