Home / 84,623.23-126,905.64-34,689.16

Finding the Fourth Proportional to 84,623.23, 126,905.64 and 34,689.16

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Solution

The fourth proportional to 84,623.23, 126,905.64 and 34,689.16 is: 52,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,623.23 : 126,905.64 = 34,689.16 : x
  2. Step 2: Convert to fraction form
    84,623.23/126,905.64 = 34,689.16/x
  3. Step 3: Cross multiply
    84,623.23x = 126,905.64 × 34,689.16
  4. Step 4: Simplify right side
    84,623.23x = 4,402,250,050.86
  5. Step 5: Solve for x
    x = 4,402,250,050.86/84,623.23
  6. Step 6: Final answer
    x = 52,021.77

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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.