Home / 72,840.04-100,520.98-40,576.83

Finding the Fourth Proportional to 72,840.04, 100,520.98 and 40,576.83

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Solution

The fourth proportional to 72,840.04, 100,520.98 and 40,576.83 is: 55,996.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,840.04 : 100,520.98 = 40,576.83 : x
  2. Step 2: Convert to fraction form
    72,840.04/100,520.98 = 40,576.83/x
  3. Step 3: Cross multiply
    72,840.04x = 100,520.98 × 40,576.83
  4. Step 4: Simplify right side
    72,840.04x = 4,078,822,514.01
  5. Step 5: Solve for x
    x = 4,078,822,514.01/72,840.04
  6. Step 6: Final answer
    x = 55,996.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.