Home / 76,961.52-106,208.64-45,153.36

Finding the Fourth Proportional to 76,961.52, 106,208.64 and 45,153.36

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Solution

The fourth proportional to 76,961.52, 106,208.64 and 45,153.36 is: 62,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961.52 : 106,208.64 = 45,153.36 : x
  2. Step 2: Convert to fraction form
    76,961.52/106,208.64 = 45,153.36/x
  3. Step 3: Cross multiply
    76,961.52x = 106,208.64 × 45,153.36
  4. Step 4: Simplify right side
    76,961.52x = 4,795,676,957.03
  5. Step 5: Solve for x
    x = 4,795,676,957.03/76,961.52
  6. Step 6: Final answer
    x = 62,312.66

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1.5x scale

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.