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Finding the Fourth Proportional to 52,412.34, 72,330.84 and 28,539.42

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Solution

The fourth proportional to 52,412.34, 72,330.84 and 28,539.42 is: 39,385.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,412.34 : 72,330.84 = 28,539.42 : x
  2. Step 2: Convert to fraction form
    52,412.34/72,330.84 = 28,539.42/x
  3. Step 3: Cross multiply
    52,412.34x = 72,330.84 × 28,539.42
  4. Step 4: Simplify right side
    52,412.34x = 2,064,280,221.71
  5. Step 5: Solve for x
    x = 2,064,280,221.71/52,412.34
  6. Step 6: Final answer
    x = 39,385.39

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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.