Home / 75,090.40-112,599.16-28,346.96

Finding the Fourth Proportional to 75,090.40, 112,599.16 and 28,346.96

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Solution

The fourth proportional to 75,090.40, 112,599.16 and 28,346.96 is: 42,506.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.40 : 112,599.16 = 28,346.96 : x
  2. Step 2: Convert to fraction form
    75,090.40/112,599.16 = 28,346.96/x
  3. Step 3: Cross multiply
    75,090.40x = 112,599.16 × 28,346.96
  4. Step 4: Simplify right side
    75,090.40x = 3,191,843,884.55
  5. Step 5: Solve for x
    x = 3,191,843,884.55/75,090.40
  6. Step 6: Final answer
    x = 42,506.68

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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.