Home / 55,200.42-82,814.40-25,639.20

Finding the Fourth Proportional to 55,200.42, 82,814.40 and 25,639.20

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Solution

The fourth proportional to 55,200.42, 82,814.40 and 25,639.20 is: 38,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,200.42 : 82,814.40 = 25,639.20 : x
  2. Step 2: Convert to fraction form
    55,200.42/82,814.40 = 25,639.20/x
  3. Step 3: Cross multiply
    55,200.42x = 82,814.40 × 25,639.20
  4. Step 4: Simplify right side
    55,200.42x = 2,123,294,964.48
  5. Step 5: Solve for x
    x = 2,123,294,964.48/55,200.42
  6. Step 6: Final answer
    x = 38,465.20

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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.