Home / 74,623.85-102,983.43-40,633.65

Finding the Fourth Proportional to 74,623.85, 102,983.43 and 40,633.65

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Solution

The fourth proportional to 74,623.85, 102,983.43 and 40,633.65 is: 56,075.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,623.85 : 102,983.43 = 40,633.65 : x
  2. Step 2: Convert to fraction form
    74,623.85/102,983.43 = 40,633.65/x
  3. Step 3: Cross multiply
    74,623.85x = 102,983.43 × 40,633.65
  4. Step 4: Simplify right side
    74,623.85x = 4,184,592,650.42
  5. Step 5: Solve for x
    x = 4,184,592,650.42/74,623.85
  6. Step 6: Final answer
    x = 56,075.81

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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.