Home / 42,789.99-64,186.45-14,709.80

Finding the Fourth Proportional to 42,789.99, 64,186.45 and 14,709.80

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Solution

The fourth proportional to 42,789.99, 64,186.45 and 14,709.80 is: 22,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,789.99 : 64,186.45 = 14,709.80 : x
  2. Step 2: Convert to fraction form
    42,789.99/64,186.45 = 14,709.80/x
  3. Step 3: Cross multiply
    42,789.99x = 64,186.45 × 14,709.80
  4. Step 4: Simplify right side
    42,789.99x = 944,169,965.90
  5. Step 5: Solve for x
    x = 944,169,965.90/42,789.99
  6. Step 6: Final answer
    x = 22,065.21

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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.