Home / 58,450.43-87,654.12-21,000.49

Finding the Fourth Proportional to 58,450.43, 87,654.12 and 21,000.49

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Solution

The fourth proportional to 58,450.43, 87,654.12 and 21,000.49 is: 31,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,450.43 : 87,654.12 = 21,000.49 : x
  2. Step 2: Convert to fraction form
    58,450.43/87,654.12 = 21,000.49/x
  3. Step 3: Cross multiply
    58,450.43x = 87,654.12 × 21,000.49
  4. Step 4: Simplify right side
    58,450.43x = 1,840,778,927.25
  5. Step 5: Solve for x
    x = 1,840,778,927.25/58,450.43
  6. Step 6: Final answer
    x = 31,492.99

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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.