Home / 81,527.40-122,127.08-46,426.05

Finding the Fourth Proportional to 81,527.40, 122,127.08 and 46,426.05

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Solution

The fourth proportional to 81,527.40, 122,127.08 and 46,426.05 is: 69,545.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,527.40 : 122,127.08 = 46,426.05 : x
  2. Step 2: Convert to fraction form
    81,527.40/122,127.08 = 46,426.05/x
  3. Step 3: Cross multiply
    81,527.40x = 122,127.08 × 46,426.05
  4. Step 4: Simplify right side
    81,527.40x = 5,669,877,690.30
  5. Step 5: Solve for x
    x = 5,669,877,690.30/81,527.40
  6. Step 6: Final answer
    x = 69,545.67

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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.