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Finding the Fourth Proportional to 45,871.52, 63,325 and 28,900.40

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Solution

The fourth proportional to 45,871.52, 63,325 and 28,900.40 is: 39,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,871.52 : 63,325 = 28,900.40 : x
  2. Step 2: Convert to fraction form
    45,871.52/63,325 = 28,900.40/x
  3. Step 3: Cross multiply
    45,871.52x = 63,325 × 28,900.40
  4. Step 4: Simplify right side
    45,871.52x = 1,830,117,830
  5. Step 5: Solve for x
    x = 1,830,117,830/45,871.52
  6. Step 6: Final answer
    x = 39,896.60

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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.