Home / 51,080.10-76,656.60-28,869.90

Finding the Fourth Proportional to 51,080.10, 76,656.60 and 28,869.90

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Solution

The fourth proportional to 51,080.10, 76,656.60 and 28,869.90 is: 43,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,080.10 : 76,656.60 = 28,869.90 : x
  2. Step 2: Convert to fraction form
    51,080.10/76,656.60 = 28,869.90/x
  3. Step 3: Cross multiply
    51,080.10x = 76,656.60 × 28,869.90
  4. Step 4: Simplify right side
    51,080.10x = 2,213,068,376.34
  5. Step 5: Solve for x
    x = 2,213,068,376.34/51,080.10
  6. Step 6: Final answer
    x = 43,325.45

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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.