Home / 76,901.10-115,384.05-41,865.90

Finding the Fourth Proportional to 76,901.10, 115,384.05 and 41,865.90

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Solution

The fourth proportional to 76,901.10, 115,384.05 and 41,865.90 is: 62,816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,901.10 : 115,384.05 = 41,865.90 : x
  2. Step 2: Convert to fraction form
    76,901.10/115,384.05 = 41,865.90/x
  3. Step 3: Cross multiply
    76,901.10x = 115,384.05 × 41,865.90
  4. Step 4: Simplify right side
    76,901.10x = 4,830,657,098.90
  5. Step 5: Solve for x
    x = 4,830,657,098.90/76,901.10
  6. Step 6: Final answer
    x = 62,816.49

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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.