Home / 80,897.98-111,639.77-45,090.30

Finding the Fourth Proportional to 80,897.98, 111,639.77 and 45,090.30

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Solution

The fourth proportional to 80,897.98, 111,639.77 and 45,090.30 is: 62,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,897.98 : 111,639.77 = 45,090.30 : x
  2. Step 2: Convert to fraction form
    80,897.98/111,639.77 = 45,090.30/x
  3. Step 3: Cross multiply
    80,897.98x = 111,639.77 × 45,090.30
  4. Step 4: Simplify right side
    80,897.98x = 5,033,870,990.70
  5. Step 5: Solve for x
    x = 5,033,870,990.70/80,897.98
  6. Step 6: Final answer
    x = 62,224.92

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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.