Home / 53,133.15-79,699.59-13,686.96

Finding the Fourth Proportional to 53,133.15, 79,699.59 and 13,686.96

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Solution

The fourth proportional to 53,133.15, 79,699.59 and 13,686.96 is: 20,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,133.15 : 79,699.59 = 13,686.96 : x
  2. Step 2: Convert to fraction form
    53,133.15/79,699.59 = 13,686.96/x
  3. Step 3: Cross multiply
    53,133.15x = 79,699.59 × 13,686.96
  4. Step 4: Simplify right side
    53,133.15x = 1,090,845,100.35
  5. Step 5: Solve for x
    x = 1,090,845,100.35/53,133.15
  6. Step 6: Final answer
    x = 20,530.41

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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.