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Finding the Fourth Proportional to 58,157.79, 87,236.72 and 18,714.89

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Solution

The fourth proportional to 58,157.79, 87,236.72 and 18,714.89 is: 28,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,157.79 : 87,236.72 = 18,714.89 : x
  2. Step 2: Convert to fraction form
    58,157.79/87,236.72 = 18,714.89/x
  3. Step 3: Cross multiply
    58,157.79x = 87,236.72 × 18,714.89
  4. Step 4: Simplify right side
    58,157.79x = 1,632,625,813.46
  5. Step 5: Solve for x
    x = 1,632,625,813.46/58,157.79
  6. Step 6: Final answer
    x = 28,072.35

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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.