Home / 67,228.16-100,818.72-19,830.68

Finding the Fourth Proportional to 67,228.16, 100,818.72 and 19,830.68

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Solution

The fourth proportional to 67,228.16, 100,818.72 and 19,830.68 is: 29,739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,228.16 : 100,818.72 = 19,830.68 : x
  2. Step 2: Convert to fraction form
    67,228.16/100,818.72 = 19,830.68/x
  3. Step 3: Cross multiply
    67,228.16x = 100,818.72 × 19,830.68
  4. Step 4: Simplify right side
    67,228.16x = 1,999,303,270.24
  5. Step 5: Solve for x
    x = 1,999,303,270.24/67,228.16
  6. Step 6: Final answer
    x = 29,739.08

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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.