Home / 84,580.92-126,520.74-64,438.00

Finding the Fourth Proportional to 84,580.92, 126,520.74 and 64,438.00

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Solution

The fourth proportional to 84,580.92, 126,520.74 and 64,438.00 is: 96,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,580.92 : 126,520.74 = 64,438.00 : x
  2. Step 2: Convert to fraction form
    84,580.92/126,520.74 = 64,438.00/x
  3. Step 3: Cross multiply
    84,580.92x = 126,520.74 × 64,438.00
  4. Step 4: Simplify right side
    84,580.92x = 8,152,743,127.82
  5. Step 5: Solve for x
    x = 8,152,743,127.82/84,580.92
  6. Step 6: Final answer
    x = 96,389.86

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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.