Home / 51,631.76-77,448.50-14,191.60

Finding the Fourth Proportional to 51,631.76, 77,448.50 and 14,191.60

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Solution

The fourth proportional to 51,631.76, 77,448.50 and 14,191.60 is: 21,287.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,631.76 : 77,448.50 = 14,191.60 : x
  2. Step 2: Convert to fraction form
    51,631.76/77,448.50 = 14,191.60/x
  3. Step 3: Cross multiply
    51,631.76x = 77,448.50 × 14,191.60
  4. Step 4: Simplify right side
    51,631.76x = 1,099,118,132.60
  5. Step 5: Solve for x
    x = 1,099,118,132.60/51,631.76
  6. Step 6: Final answer
    x = 21,287.64

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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.