Home / 55,666.14-83,507.39-20,130.12

Finding the Fourth Proportional to 55,666.14, 83,507.39 and 20,130.12

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Solution

The fourth proportional to 55,666.14, 83,507.39 and 20,130.12 is: 30,198.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,666.14 : 83,507.39 = 20,130.12 : x
  2. Step 2: Convert to fraction form
    55,666.14/83,507.39 = 20,130.12/x
  3. Step 3: Cross multiply
    55,666.14x = 83,507.39 × 20,130.12
  4. Step 4: Simplify right side
    55,666.14x = 1,681,013,756.42
  5. Step 5: Solve for x
    x = 1,681,013,756.42/55,666.14
  6. Step 6: Final answer
    x = 30,198.14

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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.