Home / 55,007.40-82,608.30-42,557.70

Finding the Fourth Proportional to 55,007.40, 82,608.30 and 42,557.70

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Solution

The fourth proportional to 55,007.40, 82,608.30 and 42,557.70 is: 63,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,007.40 : 82,608.30 = 42,557.70 : x
  2. Step 2: Convert to fraction form
    55,007.40/82,608.30 = 42,557.70/x
  3. Step 3: Cross multiply
    55,007.40x = 82,608.30 × 42,557.70
  4. Step 4: Simplify right side
    55,007.40x = 3,515,619,248.91
  5. Step 5: Solve for x
    x = 3,515,619,248.91/55,007.40
  6. Step 6: Final answer
    x = 63,911.75

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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.