Home / 84,379.50-116,539.38-57,475.35

Finding the Fourth Proportional to 84,379.50, 116,539.38 and 57,475.35

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Solution

The fourth proportional to 84,379.50, 116,539.38 and 57,475.35 is: 79,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,379.50 : 116,539.38 = 57,475.35 : x
  2. Step 2: Convert to fraction form
    84,379.50/116,539.38 = 57,475.35/x
  3. Step 3: Cross multiply
    84,379.50x = 116,539.38 × 57,475.35
  4. Step 4: Simplify right side
    84,379.50x = 6,698,141,654.28
  5. Step 5: Solve for x
    x = 6,698,141,654.28/84,379.50
  6. Step 6: Final answer
    x = 79,381.15

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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.