Home / 84,245.14-126,325.45-28,065.50

Finding the Fourth Proportional to 84,245.14, 126,325.45 and 28,065.50

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Solution

The fourth proportional to 84,245.14, 126,325.45 and 28,065.50 is: 42,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,245.14 : 126,325.45 = 28,065.50 : x
  2. Step 2: Convert to fraction form
    84,245.14/126,325.45 = 28,065.50/x
  3. Step 3: Cross multiply
    84,245.14x = 126,325.45 × 28,065.50
  4. Step 4: Simplify right side
    84,245.14x = 3,545,386,145.02
  5. Step 5: Solve for x
    x = 3,545,386,145.02/84,245.14
  6. Step 6: Final answer
    x = 42,084.16

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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.