Home / 74,907.14-103,238.18-56,714.28

Finding the Fourth Proportional to 74,907.14, 103,238.18 and 56,714.28

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Solution

The fourth proportional to 74,907.14, 103,238.18 and 56,714.28 is: 78,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,907.14 : 103,238.18 = 56,714.28 : x
  2. Step 2: Convert to fraction form
    74,907.14/103,238.18 = 56,714.28/x
  3. Step 3: Cross multiply
    74,907.14x = 103,238.18 × 56,714.28
  4. Step 4: Simplify right side
    74,907.14x = 5,855,079,189.00
  5. Step 5: Solve for x
    x = 5,855,079,189.00/74,907.14
  6. Step 6: Final answer
    x = 78,164.50

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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.