Home / 45,071.40-67,618.80-13,482.12

Finding the Fourth Proportional to 45,071.40, 67,618.80 and 13,482.12

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Solution

The fourth proportional to 45,071.40, 67,618.80 and 13,482.12 is: 20,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,071.40 : 67,618.80 = 13,482.12 : x
  2. Step 2: Convert to fraction form
    45,071.40/67,618.80 = 13,482.12/x
  3. Step 3: Cross multiply
    45,071.40x = 67,618.80 × 13,482.12
  4. Step 4: Simplify right side
    45,071.40x = 911,644,775.86
  5. Step 5: Solve for x
    x = 911,644,775.86/45,071.40
  6. Step 6: Final answer
    x = 20,226.68

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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.