Home / 81,856.02-122,671.98-61,849.02

Finding the Fourth Proportional to 81,856.02, 122,671.98 and 61,849.02

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Solution

The fourth proportional to 81,856.02, 122,671.98 and 61,849.02 is: 92,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,856.02 : 122,671.98 = 61,849.02 : x
  2. Step 2: Convert to fraction form
    81,856.02/122,671.98 = 61,849.02/x
  3. Step 3: Cross multiply
    81,856.02x = 122,671.98 × 61,849.02
  4. Step 4: Simplify right side
    81,856.02x = 7,587,141,744.46
  5. Step 5: Solve for x
    x = 7,587,141,744.46/81,856.02
  6. Step 6: Final answer
    x = 92,688.87

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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.