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Finding the Fourth Proportional to 63,482.58, 87,645.81 and 40,860.88

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Solution

The fourth proportional to 63,482.58, 87,645.81 and 40,860.88 is: 56,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,482.58 : 87,645.81 = 40,860.88 : x
  2. Step 2: Convert to fraction form
    63,482.58/87,645.81 = 40,860.88/x
  3. Step 3: Cross multiply
    63,482.58x = 87,645.81 × 40,860.88
  4. Step 4: Simplify right side
    63,482.58x = 3,581,284,924.91
  5. Step 5: Solve for x
    x = 3,581,284,924.91/63,482.58
  6. Step 6: Final answer
    x = 56,413.67

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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.