Home / 42,684.90-63,872.40-30,862.35

Finding the Fourth Proportional to 42,684.90, 63,872.40 and 30,862.35

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Solution

The fourth proportional to 42,684.90, 63,872.40 and 30,862.35 is: 46,181.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,684.90 : 63,872.40 = 30,862.35 : x
  2. Step 2: Convert to fraction form
    42,684.90/63,872.40 = 30,862.35/x
  3. Step 3: Cross multiply
    42,684.90x = 63,872.40 × 30,862.35
  4. Step 4: Simplify right side
    42,684.90x = 1,971,252,364.14
  5. Step 5: Solve for x
    x = 1,971,252,364.14/42,684.90
  6. Step 6: Final answer
    x = 46,181.49

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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.