Home / 74,895.80-103,357.02-40,905.28

Finding the Fourth Proportional to 74,895.80, 103,357.02 and 40,905.28

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Solution

The fourth proportional to 74,895.80, 103,357.02 and 40,905.28 is: 56,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,895.80 : 103,357.02 = 40,905.28 : x
  2. Step 2: Convert to fraction form
    74,895.80/103,357.02 = 40,905.28/x
  3. Step 3: Cross multiply
    74,895.80x = 103,357.02 × 40,905.28
  4. Step 4: Simplify right side
    74,895.80x = 4,227,847,843.07
  5. Step 5: Solve for x
    x = 4,227,847,843.07/74,895.80
  6. Step 6: Final answer
    x = 56,449.73

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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.