Home / 74,210.64-111,115.08-54,338.64

Finding the Fourth Proportional to 74,210.64, 111,115.08 and 54,338.64

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Solution

The fourth proportional to 74,210.64, 111,115.08 and 54,338.64 is: 81,360.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,210.64 : 111,115.08 = 54,338.64 : x
  2. Step 2: Convert to fraction form
    74,210.64/111,115.08 = 54,338.64/x
  3. Step 3: Cross multiply
    74,210.64x = 111,115.08 × 54,338.64
  4. Step 4: Simplify right side
    74,210.64x = 6,037,842,330.69
  5. Step 5: Solve for x
    x = 6,037,842,330.69/74,210.64
  6. Step 6: Final answer
    x = 81,360.87

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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.