Home / 61,864.40-92,787.96-20,306

Finding the Fourth Proportional to 61,864.40, 92,787.96 and 20,306

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Solution

The fourth proportional to 61,864.40, 92,787.96 and 20,306 is: 30,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,864.40 : 92,787.96 = 20,306 : x
  2. Step 2: Convert to fraction form
    61,864.40/92,787.96 = 20,306/x
  3. Step 3: Cross multiply
    61,864.40x = 92,787.96 × 20,306
  4. Step 4: Simplify right side
    61,864.40x = 1,884,152,315.76
  5. Step 5: Solve for x
    x = 1,884,152,315.76/61,864.40
  6. Step 6: Final answer
    x = 30,456.16

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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.