Home / 74,426.70-102,709.34-40,435.18

Finding the Fourth Proportional to 74,426.70, 102,709.34 and 40,435.18

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Solution

The fourth proportional to 74,426.70, 102,709.34 and 40,435.18 is: 55,800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,426.70 : 102,709.34 = 40,435.18 : x
  2. Step 2: Convert to fraction form
    74,426.70/102,709.34 = 40,435.18/x
  3. Step 3: Cross multiply
    74,426.70x = 102,709.34 × 40,435.18
  4. Step 4: Simplify right side
    74,426.70x = 4,153,070,191.63
  5. Step 5: Solve for x
    x = 4,153,070,191.63/74,426.70
  6. Step 6: Final answer
    x = 55,800.81

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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.