Home / 74,169.60-102,352.32-40,634.88

Finding the Fourth Proportional to 74,169.60, 102,352.32 and 40,634.88

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Solution

The fourth proportional to 74,169.60, 102,352.32 and 40,634.88 is: 56,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,169.60 : 102,352.32 = 40,634.88 : x
  2. Step 2: Convert to fraction form
    74,169.60/102,352.32 = 40,634.88/x
  3. Step 3: Cross multiply
    74,169.60x = 102,352.32 × 40,634.88
  4. Step 4: Simplify right side
    74,169.60x = 4,159,074,240.92
  5. Step 5: Solve for x
    x = 4,159,074,240.92/74,169.60
  6. Step 6: Final answer
    x = 56,075.19

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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.