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Finding the Fourth Proportional to 52,903.87, 79,335.79 and 21,303.20

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Solution

The fourth proportional to 52,903.87, 79,335.79 and 21,303.20 is: 31,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,903.87 : 79,335.79 = 21,303.20 : x
  2. Step 2: Convert to fraction form
    52,903.87/79,335.79 = 21,303.20/x
  3. Step 3: Cross multiply
    52,903.87x = 79,335.79 × 21,303.20
  4. Step 4: Simplify right side
    52,903.87x = 1,690,106,346.61
  5. Step 5: Solve for x
    x = 1,690,106,346.61/52,903.87
  6. Step 6: Final answer
    x = 31,946.74

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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.