Home / 52,070.90-78,103.76-18,338.58

Finding the Fourth Proportional to 52,070.90, 78,103.76 and 18,338.58

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Solution

The fourth proportional to 52,070.90, 78,103.76 and 18,338.58 is: 27,506.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,070.90 : 78,103.76 = 18,338.58 : x
  2. Step 2: Convert to fraction form
    52,070.90/78,103.76 = 18,338.58/x
  3. Step 3: Cross multiply
    52,070.90x = 78,103.76 × 18,338.58
  4. Step 4: Simplify right side
    52,070.90x = 1,432,311,959.37
  5. Step 5: Solve for x
    x = 1,432,311,959.37/52,070.90
  6. Step 6: Final answer
    x = 27,506.96

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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.