Home / 72,124.12-108,186.18-19,533.62

Finding the Fourth Proportional to 72,124.12, 108,186.18 and 19,533.62

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Solution

The fourth proportional to 72,124.12, 108,186.18 and 19,533.62 is: 29,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,124.12 : 108,186.18 = 19,533.62 : x
  2. Step 2: Convert to fraction form
    72,124.12/108,186.18 = 19,533.62/x
  3. Step 3: Cross multiply
    72,124.12x = 108,186.18 × 19,533.62
  4. Step 4: Simplify right side
    72,124.12x = 2,113,267,729.37
  5. Step 5: Solve for x
    x = 2,113,267,729.37/72,124.12
  6. Step 6: Final answer
    x = 29,300.43

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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.