Home / 58,091.70-87,120.10-20,646.85

Finding the Fourth Proportional to 58,091.70, 87,120.10 and 20,646.85

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Solution

The fourth proportional to 58,091.70, 87,120.10 and 20,646.85 is: 30,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,091.70 : 87,120.10 = 20,646.85 : x
  2. Step 2: Convert to fraction form
    58,091.70/87,120.10 = 20,646.85/x
  3. Step 3: Cross multiply
    58,091.70x = 87,120.10 × 20,646.85
  4. Step 4: Simplify right side
    58,091.70x = 1,798,755,636.69
  5. Step 5: Solve for x
    x = 1,798,755,636.69/58,091.70
  6. Step 6: Final answer
    x = 30,964.07

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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.