Home / 52,660.78-72,671.89-28,787.45

Finding the Fourth Proportional to 52,660.78, 72,671.89 and 28,787.45

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Solution

The fourth proportional to 52,660.78, 72,671.89 and 28,787.45 is: 39,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,660.78 : 72,671.89 = 28,787.45 : x
  2. Step 2: Convert to fraction form
    52,660.78/72,671.89 = 28,787.45/x
  3. Step 3: Cross multiply
    52,660.78x = 72,671.89 × 28,787.45
  4. Step 4: Simplify right side
    52,660.78x = 2,092,038,036.42
  5. Step 5: Solve for x
    x = 2,092,038,036.42/52,660.78
  6. Step 6: Final answer
    x = 39,726.69

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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.