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Finding the Fourth Proportional to 58,432.92, 87,654.24 and 18,989.16

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Solution

The fourth proportional to 58,432.92, 87,654.24 and 18,989.16 is: 28,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,432.92 : 87,654.24 = 18,989.16 : x
  2. Step 2: Convert to fraction form
    58,432.92/87,654.24 = 18,989.16/x
  3. Step 3: Cross multiply
    58,432.92x = 87,654.24 × 18,989.16
  4. Step 4: Simplify right side
    58,432.92x = 1,664,480,388.04
  5. Step 5: Solve for x
    x = 1,664,480,388.04/58,432.92
  6. Step 6: Final answer
    x = 28,485.32

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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.