Home / 55,384.50-83,120.14-38,635.58

Finding the Fourth Proportional to 55,384.50, 83,120.14 and 38,635.58

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Solution

The fourth proportional to 55,384.50, 83,120.14 and 38,635.58 is: 57,983.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,384.50 : 83,120.14 = 38,635.58 : x
  2. Step 2: Convert to fraction form
    55,384.50/83,120.14 = 38,635.58/x
  3. Step 3: Cross multiply
    55,384.50x = 83,120.14 × 38,635.58
  4. Step 4: Simplify right side
    55,384.50x = 3,211,394,818.58
  5. Step 5: Solve for x
    x = 3,211,394,818.58/55,384.50
  6. Step 6: Final answer
    x = 57,983.64

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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.