Home / 84,005.07-126,007.59-28,601.07

Finding the Fourth Proportional to 84,005.07, 126,007.59 and 28,601.07

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Solution

The fourth proportional to 84,005.07, 126,007.59 and 28,601.07 is: 42,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,005.07 : 126,007.59 = 28,601.07 : x
  2. Step 2: Convert to fraction form
    84,005.07/126,007.59 = 28,601.07/x
  3. Step 3: Cross multiply
    84,005.07x = 126,007.59 × 28,601.07
  4. Step 4: Simplify right side
    84,005.07x = 3,603,951,902.12
  5. Step 5: Solve for x
    x = 3,603,951,902.12/84,005.07
  6. Step 6: Final answer
    x = 42,901.60

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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.