Home / 53,139.20-79,621.31-37,130.36

Finding the Fourth Proportional to 53,139.20, 79,621.31 and 37,130.36

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Solution

The fourth proportional to 53,139.20, 79,621.31 and 37,130.36 is: 55,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,139.20 : 79,621.31 = 37,130.36 : x
  2. Step 2: Convert to fraction form
    53,139.20/79,621.31 = 37,130.36/x
  3. Step 3: Cross multiply
    53,139.20x = 79,621.31 × 37,130.36
  4. Step 4: Simplify right side
    53,139.20x = 2,956,367,903.97
  5. Step 5: Solve for x
    x = 2,956,367,903.97/53,139.20
  6. Step 6: Final answer
    x = 55,634.41

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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.