Home / 83,215.18-114,808.91-47,379.83

Finding the Fourth Proportional to 83,215.18, 114,808.91 and 47,379.83

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Solution

The fourth proportional to 83,215.18, 114,808.91 and 47,379.83 is: 65,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,215.18 : 114,808.91 = 47,379.83 : x
  2. Step 2: Convert to fraction form
    83,215.18/114,808.91 = 47,379.83/x
  3. Step 3: Cross multiply
    83,215.18x = 114,808.91 × 47,379.83
  4. Step 4: Simplify right side
    83,215.18x = 5,439,626,688.41
  5. Step 5: Solve for x
    x = 5,439,626,688.41/83,215.18
  6. Step 6: Final answer
    x = 65,368.20

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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.