Home / 69,830.80-96,359.40-39,617.68

Finding the Fourth Proportional to 69,830.80, 96,359.40 and 39,617.68

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Solution

The fourth proportional to 69,830.80, 96,359.40 and 39,617.68 is: 54,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,830.80 : 96,359.40 = 39,617.68 : x
  2. Step 2: Convert to fraction form
    69,830.80/96,359.40 = 39,617.68/x
  3. Step 3: Cross multiply
    69,830.80x = 96,359.40 × 39,617.68
  4. Step 4: Simplify right side
    69,830.80x = 3,817,535,874.19
  5. Step 5: Solve for x
    x = 3,817,535,874.19/69,830.80
  6. Step 6: Final answer
    x = 54,668.37

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1.5x scale

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.