Home / 61,485.47-84,671.28-53,415.44

Finding the Fourth Proportional to 61,485.47, 84,671.28 and 53,415.44

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Solution

The fourth proportional to 61,485.47, 84,671.28 and 53,415.44 is: 73,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,485.47 : 84,671.28 = 53,415.44 : x
  2. Step 2: Convert to fraction form
    61,485.47/84,671.28 = 53,415.44/x
  3. Step 3: Cross multiply
    61,485.47x = 84,671.28 × 53,415.44
  4. Step 4: Simplify right side
    61,485.47x = 4,522,753,253.21
  5. Step 5: Solve for x
    x = 4,522,753,253.21/61,485.47
  6. Step 6: Final answer
    x = 73,558.09

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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.