Home / 74,178.22-111,285.54-21,588.16

Finding the Fourth Proportional to 74,178.22, 111,285.54 and 21,588.16

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Solution

The fourth proportional to 74,178.22, 111,285.54 and 21,588.16 is: 32,387.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,178.22 : 111,285.54 = 21,588.16 : x
  2. Step 2: Convert to fraction form
    74,178.22/111,285.54 = 21,588.16/x
  3. Step 3: Cross multiply
    74,178.22x = 111,285.54 × 21,588.16
  4. Step 4: Simplify right side
    74,178.22x = 2,402,450,043.21
  5. Step 5: Solve for x
    x = 2,402,450,043.21/74,178.22
  6. Step 6: Final answer
    x = 32,387.54

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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.