Home / 72,279.10-108,437.55-27,907.30

Finding the Fourth Proportional to 72,279.10, 108,437.55 and 27,907.30

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Solution

The fourth proportional to 72,279.10, 108,437.55 and 27,907.30 is: 41,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,279.10 : 108,437.55 = 27,907.30 : x
  2. Step 2: Convert to fraction form
    72,279.10/108,437.55 = 27,907.30/x
  3. Step 3: Cross multiply
    72,279.10x = 108,437.55 × 27,907.30
  4. Step 4: Simplify right side
    72,279.10x = 3,026,199,239.12
  5. Step 5: Solve for x
    x = 3,026,199,239.12/72,279.10
  6. Step 6: Final answer
    x = 41,868.25

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1.5x scale

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.