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Finding the Fourth Proportional to 72,482.97, 100,026.86 and 40,653.57

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Solution

The fourth proportional to 72,482.97, 100,026.86 and 40,653.57 is: 56,102.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482.97 : 100,026.86 = 40,653.57 : x
  2. Step 2: Convert to fraction form
    72,482.97/100,026.86 = 40,653.57/x
  3. Step 3: Cross multiply
    72,482.97x = 100,026.86 × 40,653.57
  4. Step 4: Simplify right side
    72,482.97x = 4,066,448,751.62
  5. Step 5: Solve for x
    x = 4,066,448,751.62/72,482.97
  6. Step 6: Final answer
    x = 56,102.13

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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.