Home / 53,268.38-79,881.80-19,970.30

Finding the Fourth Proportional to 53,268.38, 79,881.80 and 19,970.30

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Solution

The fourth proportional to 53,268.38, 79,881.80 and 19,970.30 is: 29,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,268.38 : 79,881.80 = 19,970.30 : x
  2. Step 2: Convert to fraction form
    53,268.38/79,881.80 = 19,970.30/x
  3. Step 3: Cross multiply
    53,268.38x = 79,881.80 × 19,970.30
  4. Step 4: Simplify right side
    53,268.38x = 1,595,263,111.13
  5. Step 5: Solve for x
    x = 1,595,263,111.13/53,268.38
  6. Step 6: Final answer
    x = 29,947.66

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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.