Home / 74,884.79-112,261.55-28,170.47

Finding the Fourth Proportional to 74,884.79, 112,261.55 and 28,170.47

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Solution

The fourth proportional to 74,884.79, 112,261.55 and 28,170.47 is: 42,231.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,884.79 : 112,261.55 = 28,170.47 : x
  2. Step 2: Convert to fraction form
    74,884.79/112,261.55 = 28,170.47/x
  3. Step 3: Cross multiply
    74,884.79x = 112,261.55 × 28,170.47
  4. Step 4: Simplify right side
    74,884.79x = 3,162,459,924.27
  5. Step 5: Solve for x
    x = 3,162,459,924.27/74,884.79
  6. Step 6: Final answer
    x = 42,231.01

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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.