Home / 74,875.32-103,327.41-40,883.78

Finding the Fourth Proportional to 74,875.32, 103,327.41 and 40,883.78

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Solution

The fourth proportional to 74,875.32, 103,327.41 and 40,883.78 is: 56,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,875.32 : 103,327.41 = 40,883.78 : x
  2. Step 2: Convert to fraction form
    74,875.32/103,327.41 = 40,883.78/x
  3. Step 3: Cross multiply
    74,875.32x = 103,327.41 × 40,883.78
  4. Step 4: Simplify right side
    74,875.32x = 4,224,415,356.73
  5. Step 5: Solve for x
    x = 4,224,415,356.73/74,875.32
  6. Step 6: Final answer
    x = 56,419.33

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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.