Home / 55,012.10-82,518.15-51,512.90

Finding the Fourth Proportional to 55,012.10, 82,518.15 and 51,512.90

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Solution

The fourth proportional to 55,012.10, 82,518.15 and 51,512.90 is: 77,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012.10 : 82,518.15 = 51,512.90 : x
  2. Step 2: Convert to fraction form
    55,012.10/82,518.15 = 51,512.90/x
  3. Step 3: Cross multiply
    55,012.10x = 82,518.15 × 51,512.90
  4. Step 4: Simplify right side
    55,012.10x = 4,250,749,209.14
  5. Step 5: Solve for x
    x = 4,250,749,209.14/55,012.10
  6. Step 6: Final answer
    x = 77,269.35

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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.