Home / 92,890.96-128,242.66-61,152.12

Finding the Fourth Proportional to 92,890.96, 128,242.66 and 61,152.12

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Solution

The fourth proportional to 92,890.96, 128,242.66 and 61,152.12 is: 84,424.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,890.96 : 128,242.66 = 61,152.12 : x
  2. Step 2: Convert to fraction form
    92,890.96/128,242.66 = 61,152.12/x
  3. Step 3: Cross multiply
    92,890.96x = 128,242.66 × 61,152.12
  4. Step 4: Simplify right side
    92,890.96x = 7,842,310,533.44
  5. Step 5: Solve for x
    x = 7,842,310,533.44/92,890.96
  6. Step 6: Final answer
    x = 84,424.91

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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.