Home / 55,204.80-82,807.20-39,458.40

Finding the Fourth Proportional to 55,204.80, 82,807.20 and 39,458.40

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Solution

The fourth proportional to 55,204.80, 82,807.20 and 39,458.40 is: 59,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,204.80 : 82,807.20 = 39,458.40 : x
  2. Step 2: Convert to fraction form
    55,204.80/82,807.20 = 39,458.40/x
  3. Step 3: Cross multiply
    55,204.80x = 82,807.20 × 39,458.40
  4. Step 4: Simplify right side
    55,204.80x = 3,267,439,620.48
  5. Step 5: Solve for x
    x = 3,267,439,620.48/55,204.80
  6. Step 6: Final answer
    x = 59,187.60

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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.