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Finding the Fourth Proportional to 71,142.94, 98,223.06 and 45,660.28

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Solution

The fourth proportional to 71,142.94, 98,223.06 and 45,660.28 is: 63,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,142.94 : 98,223.06 = 45,660.28 : x
  2. Step 2: Convert to fraction form
    71,142.94/98,223.06 = 45,660.28/x
  3. Step 3: Cross multiply
    71,142.94x = 98,223.06 × 45,660.28
  4. Step 4: Simplify right side
    71,142.94x = 4,484,892,422.06
  5. Step 5: Solve for x
    x = 4,484,892,422.06/71,142.94
  6. Step 6: Final answer
    x = 63,040.58

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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.