Home / 76,877.02-115,107.85-39,863.26

Finding the Fourth Proportional to 76,877.02, 115,107.85 and 39,863.26

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Solution

The fourth proportional to 76,877.02, 115,107.85 and 39,863.26 is: 59,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,877.02 : 115,107.85 = 39,863.26 : x
  2. Step 2: Convert to fraction form
    76,877.02/115,107.85 = 39,863.26/x
  3. Step 3: Cross multiply
    76,877.02x = 115,107.85 × 39,863.26
  4. Step 4: Simplify right side
    76,877.02x = 4,588,574,152.59
  5. Step 5: Solve for x
    x = 4,588,574,152.59/76,877.02
  6. Step 6: Final answer
    x = 59,687.20

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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.