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Finding the Fourth Proportional to 52,363.28, 72,260.04 and 28,490

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Solution

The fourth proportional to 52,363.28, 72,260.04 and 28,490 is: 39,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,363.28 : 72,260.04 = 28,490 : x
  2. Step 2: Convert to fraction form
    52,363.28/72,260.04 = 28,490/x
  3. Step 3: Cross multiply
    52,363.28x = 72,260.04 × 28,490
  4. Step 4: Simplify right side
    52,363.28x = 2,058,688,539.60
  5. Step 5: Solve for x
    x = 2,058,688,539.60/52,363.28
  6. Step 6: Final answer
    x = 39,315.50

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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.