Home / 51,971.82-77,988.48-21,984.36

Finding the Fourth Proportional to 51,971.82, 77,988.48 and 21,984.36

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Solution

The fourth proportional to 51,971.82, 77,988.48 and 21,984.36 is: 32,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,971.82 : 77,988.48 = 21,984.36 : x
  2. Step 2: Convert to fraction form
    51,971.82/77,988.48 = 21,984.36/x
  3. Step 3: Cross multiply
    51,971.82x = 77,988.48 × 21,984.36
  4. Step 4: Simplify right side
    51,971.82x = 1,714,526,820.17
  5. Step 5: Solve for x
    x = 1,714,526,820.17/51,971.82
  6. Step 6: Final answer
    x = 32,989.55

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1.5x scale

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.