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Finding the Fourth Proportional to 56,603.28, 84,871.56 and 21,545.40

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Solution

The fourth proportional to 56,603.28, 84,871.56 and 21,545.40 is: 32,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.28 : 84,871.56 = 21,545.40 : x
  2. Step 2: Convert to fraction form
    56,603.28/84,871.56 = 21,545.40/x
  3. Step 3: Cross multiply
    56,603.28x = 84,871.56 × 21,545.40
  4. Step 4: Simplify right side
    56,603.28x = 1,828,591,708.82
  5. Step 5: Solve for x
    x = 1,828,591,708.82/56,603.28
  6. Step 6: Final answer
    x = 32,305.40

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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.