Home / 51,761.28-71,430.21-29,405.28

Finding the Fourth Proportional to 51,761.28, 71,430.21 and 29,405.28

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Solution

The fourth proportional to 51,761.28, 71,430.21 and 29,405.28 is: 40,579.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,761.28 : 71,430.21 = 29,405.28 : x
  2. Step 2: Convert to fraction form
    51,761.28/71,430.21 = 29,405.28/x
  3. Step 3: Cross multiply
    51,761.28x = 71,430.21 × 29,405.28
  4. Step 4: Simplify right side
    51,761.28x = 2,100,425,325.51
  5. Step 5: Solve for x
    x = 2,100,425,325.51/51,761.28
  6. Step 6: Final answer
    x = 40,579.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.