Home / 81,807.19-122,671.50-48,531.58

Finding the Fourth Proportional to 81,807.19, 122,671.50 and 48,531.58

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Solution

The fourth proportional to 81,807.19, 122,671.50 and 48,531.58 is: 72,774.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,807.19 : 122,671.50 = 48,531.58 : x
  2. Step 2: Convert to fraction form
    81,807.19/122,671.50 = 48,531.58/x
  3. Step 3: Cross multiply
    81,807.19x = 122,671.50 × 48,531.58
  4. Step 4: Simplify right side
    81,807.19x = 5,953,441,715.97
  5. Step 5: Solve for x
    x = 5,953,441,715.97/81,807.19
  6. Step 6: Final answer
    x = 72,774.06

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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.