Home / 74,117.19-102,281.23-40,125.43

Finding the Fourth Proportional to 74,117.19, 102,281.23 and 40,125.43

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Solution

The fourth proportional to 74,117.19, 102,281.23 and 40,125.43 is: 55,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,117.19 : 102,281.23 = 40,125.43 : x
  2. Step 2: Convert to fraction form
    74,117.19/102,281.23 = 40,125.43/x
  3. Step 3: Cross multiply
    74,117.19x = 102,281.23 × 40,125.43
  4. Step 4: Simplify right side
    74,117.19x = 4,104,078,334.68
  5. Step 5: Solve for x
    x = 4,104,078,334.68/74,117.19
  6. Step 6: Final answer
    x = 55,372.83

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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.