Home / 63,109.05-87,090.65-34,428.78

Finding the Fourth Proportional to 63,109.05, 87,090.65 and 34,428.78

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Solution

The fourth proportional to 63,109.05, 87,090.65 and 34,428.78 is: 47,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,109.05 : 87,090.65 = 34,428.78 : x
  2. Step 2: Convert to fraction form
    63,109.05/87,090.65 = 34,428.78/x
  3. Step 3: Cross multiply
    63,109.05x = 87,090.65 × 34,428.78
  4. Step 4: Simplify right side
    63,109.05x = 2,998,424,656.76
  5. Step 5: Solve for x
    x = 2,998,424,656.76/63,109.05
  6. Step 6: Final answer
    x = 47,511.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.