Home / 42,678.27-64,018.35-11,089.58

Finding the Fourth Proportional to 42,678.27, 64,018.35 and 11,089.58

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Solution

The fourth proportional to 42,678.27, 64,018.35 and 11,089.58 is: 16,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,678.27 : 64,018.35 = 11,089.58 : x
  2. Step 2: Convert to fraction form
    42,678.27/64,018.35 = 11,089.58/x
  3. Step 3: Cross multiply
    42,678.27x = 64,018.35 × 11,089.58
  4. Step 4: Simplify right side
    42,678.27x = 709,936,293.70
  5. Step 5: Solve for x
    x = 709,936,293.70/42,678.27
  6. Step 6: Final answer
    x = 16,634.61

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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.