Home / 74,715.09-103,106.16-40,723.58

Finding the Fourth Proportional to 74,715.09, 103,106.16 and 40,723.58

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Solution

The fourth proportional to 74,715.09, 103,106.16 and 40,723.58 is: 56,198.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.09 : 103,106.16 = 40,723.58 : x
  2. Step 2: Convert to fraction form
    74,715.09/103,106.16 = 40,723.58/x
  3. Step 3: Cross multiply
    74,715.09x = 103,106.16 × 40,723.58
  4. Step 4: Simplify right side
    74,715.09x = 4,198,851,439.72
  5. Step 5: Solve for x
    x = 4,198,851,439.72/74,715.09
  6. Step 6: Final answer
    x = 56,198.17

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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.