Home / 53,132.15-79,698.09-13,685.96

Finding the Fourth Proportional to 53,132.15, 79,698.09 and 13,685.96

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Solution

The fourth proportional to 53,132.15, 79,698.09 and 13,685.96 is: 20,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,132.15 : 79,698.09 = 13,685.96 : x
  2. Step 2: Convert to fraction form
    53,132.15/79,698.09 = 13,685.96/x
  3. Step 3: Cross multiply
    53,132.15x = 79,698.09 × 13,685.96
  4. Step 4: Simplify right side
    53,132.15x = 1,090,744,871.82
  5. Step 5: Solve for x
    x = 1,090,744,871.82/53,132.15
  6. Step 6: Final answer
    x = 20,528.91

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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.