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Finding the Fourth Proportional to 74,368.91, 111,597.69 and 26,987.70

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Solution

The fourth proportional to 74,368.91, 111,597.69 and 26,987.70 is: 40,497.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,368.91 : 111,597.69 = 26,987.70 : x
  2. Step 2: Convert to fraction form
    74,368.91/111,597.69 = 26,987.70/x
  3. Step 3: Cross multiply
    74,368.91x = 111,597.69 × 26,987.70
  4. Step 4: Simplify right side
    74,368.91x = 3,011,764,978.41
  5. Step 5: Solve for x
    x = 3,011,764,978.41/74,368.91
  6. Step 6: Final answer
    x = 40,497.64

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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.