Home / 92,905.40-128,262.65-61,166.57

Finding the Fourth Proportional to 92,905.40, 128,262.65 and 61,166.57

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Solution

The fourth proportional to 92,905.40, 128,262.65 and 61,166.57 is: 84,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,905.40 : 128,262.65 = 61,166.57 : x
  2. Step 2: Convert to fraction form
    92,905.40/128,262.65 = 61,166.57/x
  3. Step 3: Cross multiply
    92,905.40x = 128,262.65 × 61,166.57
  4. Step 4: Simplify right side
    92,905.40x = 7,845,385,718.30
  5. Step 5: Solve for x
    x = 7,845,385,718.30/92,905.40
  6. Step 6: Final answer
    x = 84,444.88

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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.