Home / 65,075.05-97,619.75-20,691.42

Finding the Fourth Proportional to 65,075.05, 97,619.75 and 20,691.42

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Solution

The fourth proportional to 65,075.05, 97,619.75 and 20,691.42 is: 31,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,075.05 : 97,619.75 = 20,691.42 : x
  2. Step 2: Convert to fraction form
    65,075.05/97,619.75 = 20,691.42/x
  3. Step 3: Cross multiply
    65,075.05x = 97,619.75 × 20,691.42
  4. Step 4: Simplify right side
    65,075.05x = 2,019,891,247.55
  5. Step 5: Solve for x
    x = 2,019,891,247.55/65,075.05
  6. Step 6: Final answer
    x = 31,039.41

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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.