Home / 82,379.04-113,703.44-54,123.04

Finding the Fourth Proportional to 82,379.04, 113,703.44 and 54,123.04

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Solution

The fourth proportional to 82,379.04, 113,703.44 and 54,123.04 is: 74,703.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,379.04 : 113,703.44 = 54,123.04 : x
  2. Step 2: Convert to fraction form
    82,379.04/113,703.44 = 54,123.04/x
  3. Step 3: Cross multiply
    82,379.04x = 113,703.44 × 54,123.04
  4. Step 4: Simplify right side
    82,379.04x = 6,153,975,831.26
  5. Step 5: Solve for x
    x = 6,153,975,831.26/82,379.04
  6. Step 6: Final answer
    x = 74,703.17

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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.