Home / 74,429.06-102,713.27-40,438.22

Finding the Fourth Proportional to 74,429.06, 102,713.27 and 40,438.22

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Solution

The fourth proportional to 74,429.06, 102,713.27 and 40,438.22 is: 55,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.06 : 102,713.27 = 40,438.22 : x
  2. Step 2: Convert to fraction form
    74,429.06/102,713.27 = 40,438.22/x
  3. Step 3: Cross multiply
    74,429.06x = 102,713.27 × 40,438.22
  4. Step 4: Simplify right side
    74,429.06x = 4,153,541,809.18
  5. Step 5: Solve for x
    x = 4,153,541,809.18/74,429.06
  6. Step 6: Final answer
    x = 55,805.38

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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.