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Finding the Fourth Proportional to 48,170.70, 72,254.70 and 21,875.40

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Solution

The fourth proportional to 48,170.70, 72,254.70 and 21,875.40 is: 32,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,170.70 : 72,254.70 = 21,875.40 : x
  2. Step 2: Convert to fraction form
    48,170.70/72,254.70 = 21,875.40/x
  3. Step 3: Cross multiply
    48,170.70x = 72,254.70 × 21,875.40
  4. Step 4: Simplify right side
    48,170.70x = 1,580,600,464.38
  5. Step 5: Solve for x
    x = 1,580,600,464.38/48,170.70
  6. Step 6: Final answer
    x = 32,812.49

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1.5x scale

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.