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Finding the Fourth Proportional to 66,987.45, 100,487.67 and 24,303.69

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Solution

The fourth proportional to 66,987.45, 100,487.67 and 24,303.69 is: 36,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,987.45 : 100,487.67 = 24,303.69 : x
  2. Step 2: Convert to fraction form
    66,987.45/100,487.67 = 24,303.69/x
  3. Step 3: Cross multiply
    66,987.45x = 100,487.67 × 24,303.69
  4. Step 4: Simplify right side
    66,987.45x = 2,442,221,180.50
  5. Step 5: Solve for x
    x = 2,442,221,180.50/66,987.45
  6. Step 6: Final answer
    x = 36,457.89

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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.