Home / 42,671.51-63,867.84-38,579.12

Finding the Fourth Proportional to 42,671.51, 63,867.84 and 38,579.12

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Solution

The fourth proportional to 42,671.51, 63,867.84 and 38,579.12 is: 57,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,671.51 : 63,867.84 = 38,579.12 : x
  2. Step 2: Convert to fraction form
    42,671.51/63,867.84 = 38,579.12/x
  3. Step 3: Cross multiply
    42,671.51x = 63,867.84 × 38,579.12
  4. Step 4: Simplify right side
    42,671.51x = 2,463,965,063.50
  5. Step 5: Solve for x
    x = 2,463,965,063.50/42,671.51
  6. Step 6: Final answer
    x = 57,742.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.