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Finding the Fourth Proportional to 52,763.39, 72,813.51 and 28,890.06

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Solution

The fourth proportional to 52,763.39, 72,813.51 and 28,890.06 is: 39,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,763.39 : 72,813.51 = 28,890.06 : x
  2. Step 2: Convert to fraction form
    52,763.39/72,813.51 = 28,890.06/x
  3. Step 3: Cross multiply
    52,763.39x = 72,813.51 × 28,890.06
  4. Step 4: Simplify right side
    52,763.39x = 2,103,586,672.71
  5. Step 5: Solve for x
    x = 2,103,586,672.71/52,763.39
  6. Step 6: Final answer
    x = 39,868.30

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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.