Home / 42,636.36-63,998.90-31,404.39

Finding the Fourth Proportional to 42,636.36, 63,998.90 and 31,404.39

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Solution

The fourth proportional to 42,636.36, 63,998.90 and 31,404.39 is: 47,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,636.36 : 63,998.90 = 31,404.39 : x
  2. Step 2: Convert to fraction form
    42,636.36/63,998.90 = 31,404.39/x
  3. Step 3: Cross multiply
    42,636.36x = 63,998.90 × 31,404.39
  4. Step 4: Simplify right side
    42,636.36x = 2,009,846,415.17
  5. Step 5: Solve for x
    x = 2,009,846,415.17/42,636.36
  6. Step 6: Final answer
    x = 47,139.26

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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.