Home / 61,521.60-84,716.64-57,056.10

Finding the Fourth Proportional to 61,521.60, 84,716.64 and 57,056.10

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Solution

The fourth proportional to 61,521.60, 84,716.64 and 57,056.10 is: 78,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,521.60 : 84,716.64 = 57,056.10 : x
  2. Step 2: Convert to fraction form
    61,521.60/84,716.64 = 57,056.10/x
  3. Step 3: Cross multiply
    61,521.60x = 84,716.64 × 57,056.10
  4. Step 4: Simplify right side
    61,521.60x = 4,833,601,083.50
  5. Step 5: Solve for x
    x = 4,833,601,083.50/61,521.60
  6. Step 6: Final answer
    x = 78,567.55

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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.