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Finding the Fourth Proportional to 52,756.79, 72,805.64 and 28,883.39

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Solution

The fourth proportional to 52,756.79, 72,805.64 and 28,883.39 is: 39,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,756.79 : 72,805.64 = 28,883.39 : x
  2. Step 2: Convert to fraction form
    52,756.79/72,805.64 = 28,883.39/x
  3. Step 3: Cross multiply
    52,756.79x = 72,805.64 × 28,883.39
  4. Step 4: Simplify right side
    52,756.79x = 2,102,873,694.32
  5. Step 5: Solve for x
    x = 2,102,873,694.32/52,756.79
  6. Step 6: Final answer
    x = 39,859.77

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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.