Home / 81,938.50-122,793.44-61,931.50

Finding the Fourth Proportional to 81,938.50, 122,793.44 and 61,931.50

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Solution

The fourth proportional to 81,938.50, 122,793.44 and 61,931.50 is: 92,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,938.50 : 122,793.44 = 61,931.50 : x
  2. Step 2: Convert to fraction form
    81,938.50/122,793.44 = 61,931.50/x
  3. Step 3: Cross multiply
    81,938.50x = 122,793.44 × 61,931.50
  4. Step 4: Simplify right side
    81,938.50x = 7,604,781,929.36
  5. Step 5: Solve for x
    x = 7,604,781,929.36/81,938.50
  6. Step 6: Final answer
    x = 92,810.85

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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.