Home / 74,840.19-103,280.42-40,849.65

Finding the Fourth Proportional to 74,840.19, 103,280.42 and 40,849.65

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Solution

The fourth proportional to 74,840.19, 103,280.42 and 40,849.65 is: 56,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,840.19 : 103,280.42 = 40,849.65 : x
  2. Step 2: Convert to fraction form
    74,840.19/103,280.42 = 40,849.65/x
  3. Step 3: Cross multiply
    74,840.19x = 103,280.42 × 40,849.65
  4. Step 4: Simplify right side
    74,840.19x = 4,218,969,110.98
  5. Step 5: Solve for x
    x = 4,218,969,110.98/74,840.19
  6. Step 6: Final answer
    x = 56,373.04

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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.