Home / 74,781.72-112,171.14-19,376.28

Finding the Fourth Proportional to 74,781.72, 112,171.14 and 19,376.28

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Solution

The fourth proportional to 74,781.72, 112,171.14 and 19,376.28 is: 29,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,781.72 : 112,171.14 = 19,376.28 : x
  2. Step 2: Convert to fraction form
    74,781.72/112,171.14 = 19,376.28/x
  3. Step 3: Cross multiply
    74,781.72x = 112,171.14 × 19,376.28
  4. Step 4: Simplify right side
    74,781.72x = 2,173,459,416.56
  5. Step 5: Solve for x
    x = 2,173,459,416.56/74,781.72
  6. Step 6: Final answer
    x = 29,064.05

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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.