Home / 58,450.68-87,654.49-21,000.74

Finding the Fourth Proportional to 58,450.68, 87,654.49 and 21,000.74

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Solution

The fourth proportional to 58,450.68, 87,654.49 and 21,000.74 is: 31,493.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,450.68 : 87,654.49 = 21,000.74 : x
  2. Step 2: Convert to fraction form
    58,450.68/87,654.49 = 21,000.74/x
  3. Step 3: Cross multiply
    58,450.68x = 87,654.49 × 21,000.74
  4. Step 4: Simplify right side
    58,450.68x = 1,840,808,663.55
  5. Step 5: Solve for x
    x = 1,840,808,663.55/58,450.68
  6. Step 6: Final answer
    x = 31,493.37

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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.