Home / 76,985.10-106,341.44-61,934.45

Finding the Fourth Proportional to 76,985.10, 106,341.44 and 61,934.45

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Solution

The fourth proportional to 76,985.10, 106,341.44 and 61,934.45 is: 85,551.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,985.10 : 106,341.44 = 61,934.45 : x
  2. Step 2: Convert to fraction form
    76,985.10/106,341.44 = 61,934.45/x
  3. Step 3: Cross multiply
    76,985.10x = 106,341.44 × 61,934.45
  4. Step 4: Simplify right side
    76,985.10x = 6,586,198,487.59
  5. Step 5: Solve for x
    x = 6,586,198,487.59/76,985.10
  6. Step 6: Final answer
    x = 85,551.60

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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.