Home / 74,068.35-111,164.74-31,980.24

Finding the Fourth Proportional to 74,068.35, 111,164.74 and 31,980.24

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Solution

The fourth proportional to 74,068.35, 111,164.74 and 31,980.24 is: 47,997.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,068.35 : 111,164.74 = 31,980.24 : x
  2. Step 2: Convert to fraction form
    74,068.35/111,164.74 = 31,980.24/x
  3. Step 3: Cross multiply
    74,068.35x = 111,164.74 × 31,980.24
  4. Step 4: Simplify right side
    74,068.35x = 3,555,074,984.79
  5. Step 5: Solve for x
    x = 3,555,074,984.79/74,068.35
  6. Step 6: Final answer
    x = 47,997.22

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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.