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Finding the Fourth Proportional to 52,412.62, 72,329.50 and 28,539.40

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Solution

The fourth proportional to 52,412.62, 72,329.50 and 28,539.40 is: 39,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,412.62 : 72,329.50 = 28,539.40 : x
  2. Step 2: Convert to fraction form
    52,412.62/72,329.50 = 28,539.40/x
  3. Step 3: Cross multiply
    52,412.62x = 72,329.50 × 28,539.40
  4. Step 4: Simplify right side
    52,412.62x = 2,064,240,532.30
  5. Step 5: Solve for x
    x = 2,064,240,532.30/52,412.62
  6. Step 6: Final answer
    x = 39,384.42

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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.