Home / 61,119.51-91,685.22-18,988.26

Finding the Fourth Proportional to 61,119.51, 91,685.22 and 18,988.26

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Solution

The fourth proportional to 61,119.51, 91,685.22 and 18,988.26 is: 28,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,119.51 : 91,685.22 = 18,988.26 : x
  2. Step 2: Convert to fraction form
    61,119.51/91,685.22 = 18,988.26/x
  3. Step 3: Cross multiply
    61,119.51x = 91,685.22 × 18,988.26
  4. Step 4: Simplify right side
    61,119.51x = 1,740,942,795.52
  5. Step 5: Solve for x
    x = 1,740,942,795.52/61,119.51
  6. Step 6: Final answer
    x = 28,484.24

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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.