Home / 92,905.74-128,211.30-52,618.50

Finding the Fourth Proportional to 92,905.74, 128,211.30 and 52,618.50

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Solution

The fourth proportional to 92,905.74, 128,211.30 and 52,618.50 is: 72,614.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,905.74 : 128,211.30 = 52,618.50 : x
  2. Step 2: Convert to fraction form
    92,905.74/128,211.30 = 52,618.50/x
  3. Step 3: Cross multiply
    92,905.74x = 128,211.30 × 52,618.50
  4. Step 4: Simplify right side
    92,905.74x = 6,746,286,289.05
  5. Step 5: Solve for x
    x = 6,746,286,289.05/92,905.74
  6. Step 6: Final answer
    x = 72,614.31

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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.