Home / 74,123.04-102,288.78-40,589.04

Finding the Fourth Proportional to 74,123.04, 102,288.78 and 40,589.04

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Solution

The fourth proportional to 74,123.04, 102,288.78 and 40,589.04 is: 56,012.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,123.04 : 102,288.78 = 40,589.04 : x
  2. Step 2: Convert to fraction form
    74,123.04/102,288.78 = 40,589.04/x
  3. Step 3: Cross multiply
    74,123.04x = 102,288.78 × 40,589.04
  4. Step 4: Simplify right side
    74,123.04x = 4,151,803,382.97
  5. Step 5: Solve for x
    x = 4,151,803,382.97/74,123.04
  6. Step 6: Final answer
    x = 56,012.32

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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.