Home / 55,419.20-83,011.80-36,708.20

Finding the Fourth Proportional to 55,419.20, 83,011.80 and 36,708.20

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Solution

The fourth proportional to 55,419.20, 83,011.80 and 36,708.20 is: 54,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,419.20 : 83,011.80 = 36,708.20 : x
  2. Step 2: Convert to fraction form
    55,419.20/83,011.80 = 36,708.20/x
  3. Step 3: Cross multiply
    55,419.20x = 83,011.80 × 36,708.20
  4. Step 4: Simplify right side
    55,419.20x = 3,047,213,756.76
  5. Step 5: Solve for x
    x = 3,047,213,756.76/55,419.20
  6. Step 6: Final answer
    x = 54,984.80

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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.