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Finding the Fourth Proportional to 81,726.44, 112,782.06 and 45,916.14

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Solution

The fourth proportional to 81,726.44, 112,782.06 and 45,916.14 is: 63,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,726.44 : 112,782.06 = 45,916.14 : x
  2. Step 2: Convert to fraction form
    81,726.44/112,782.06 = 45,916.14/x
  3. Step 3: Cross multiply
    81,726.44x = 112,782.06 × 45,916.14
  4. Step 4: Simplify right side
    81,726.44x = 5,178,516,261.33
  5. Step 5: Solve for x
    x = 5,178,516,261.33/81,726.44
  6. Step 6: Final answer
    x = 63,364.03

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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.