Home / 72,282.10-108,364.70-30,194.42

Finding the Fourth Proportional to 72,282.10, 108,364.70 and 30,194.42

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Solution

The fourth proportional to 72,282.10, 108,364.70 and 30,194.42 is: 45,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,282.10 : 108,364.70 = 30,194.42 : x
  2. Step 2: Convert to fraction form
    72,282.10/108,364.70 = 30,194.42/x
  3. Step 3: Cross multiply
    72,282.10x = 108,364.70 × 30,194.42
  4. Step 4: Simplify right side
    72,282.10x = 3,272,009,264.97
  5. Step 5: Solve for x
    x = 3,272,009,264.97/72,282.10
  6. Step 6: Final answer
    x = 45,267.21

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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.