Home / 63,108.68-87,090.12-34,428.40

Finding the Fourth Proportional to 63,108.68, 87,090.12 and 34,428.40

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Solution

The fourth proportional to 63,108.68, 87,090.12 and 34,428.40 is: 47,511.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,108.68 : 87,090.12 = 34,428.40 : x
  2. Step 2: Convert to fraction form
    63,108.68/87,090.12 = 34,428.40/x
  3. Step 3: Cross multiply
    63,108.68x = 87,090.12 × 34,428.40
  4. Step 4: Simplify right side
    63,108.68x = 2,998,373,269.68
  5. Step 5: Solve for x
    x = 2,998,373,269.68/63,108.68
  6. Step 6: Final answer
    x = 47,511.27

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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.