Home / 42,088.31-63,084.07-18,390.34

Finding the Fourth Proportional to 42,088.31, 63,084.07 and 18,390.34

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Solution

The fourth proportional to 42,088.31, 63,084.07 and 18,390.34 is: 27,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,088.31 : 63,084.07 = 18,390.34 : x
  2. Step 2: Convert to fraction form
    42,088.31/63,084.07 = 18,390.34/x
  3. Step 3: Cross multiply
    42,088.31x = 63,084.07 × 18,390.34
  4. Step 4: Simplify right side
    42,088.31x = 1,160,137,494.28
  5. Step 5: Solve for x
    x = 1,160,137,494.28/42,088.31
  6. Step 6: Final answer
    x = 27,564.36

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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.