Home / 52,787.82-72,847.21-28,915.35

Finding the Fourth Proportional to 52,787.82, 72,847.21 and 28,915.35

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Solution

The fourth proportional to 52,787.82, 72,847.21 and 28,915.35 is: 39,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,787.82 : 72,847.21 = 28,915.35 : x
  2. Step 2: Convert to fraction form
    52,787.82/72,847.21 = 28,915.35/x
  3. Step 3: Cross multiply
    52,787.82x = 72,847.21 × 28,915.35
  4. Step 4: Simplify right side
    52,787.82x = 2,106,402,573.67
  5. Step 5: Solve for x
    x = 2,106,402,573.67/52,787.82
  6. Step 6: Final answer
    x = 39,903.19

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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.