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Finding the Fourth Proportional to 52,530.30, 72,490.95 and 28,656.99

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Solution

The fourth proportional to 52,530.30, 72,490.95 and 28,656.99 is: 39,546.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,530.30 : 72,490.95 = 28,656.99 : x
  2. Step 2: Convert to fraction form
    52,530.30/72,490.95 = 28,656.99/x
  3. Step 3: Cross multiply
    52,530.30x = 72,490.95 × 28,656.99
  4. Step 4: Simplify right side
    52,530.30x = 2,077,372,429.24
  5. Step 5: Solve for x
    x = 2,077,372,429.24/52,530.30
  6. Step 6: Final answer
    x = 39,546.17

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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.