Home / 81,275.21-112,164.15-45,463.09

Finding the Fourth Proportional to 81,275.21, 112,164.15 and 45,463.09

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Solution

The fourth proportional to 81,275.21, 112,164.15 and 45,463.09 is: 62,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,275.21 : 112,164.15 = 45,463.09 : x
  2. Step 2: Convert to fraction form
    81,275.21/112,164.15 = 45,463.09/x
  3. Step 3: Cross multiply
    81,275.21x = 112,164.15 × 45,463.09
  4. Step 4: Simplify right side
    81,275.21x = 5,099,328,058.09
  5. Step 5: Solve for x
    x = 5,099,328,058.09/81,275.21
  6. Step 6: Final answer
    x = 62,741.49

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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.