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Finding the Fourth Proportional to 80,653.50, 111,301.83 and 45,325.50

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Solution

The fourth proportional to 80,653.50, 111,301.83 and 45,325.50 is: 62,549.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,653.50 : 111,301.83 = 45,325.50 : x
  2. Step 2: Convert to fraction form
    80,653.50/111,301.83 = 45,325.50/x
  3. Step 3: Cross multiply
    80,653.50x = 111,301.83 × 45,325.50
  4. Step 4: Simplify right side
    80,653.50x = 5,044,811,095.67
  5. Step 5: Solve for x
    x = 5,044,811,095.67/80,653.50
  6. Step 6: Final answer
    x = 62,549.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.