Home / 92,839.48-128,099.82-57,035.32

Finding the Fourth Proportional to 92,839.48, 128,099.82 and 57,035.32

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Solution

The fourth proportional to 92,839.48, 128,099.82 and 57,035.32 is: 78,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,839.48 : 128,099.82 = 57,035.32 : x
  2. Step 2: Convert to fraction form
    92,839.48/128,099.82 = 57,035.32/x
  3. Step 3: Cross multiply
    92,839.48x = 128,099.82 × 57,035.32
  4. Step 4: Simplify right side
    92,839.48x = 7,306,214,225.64
  5. Step 5: Solve for x
    x = 7,306,214,225.64/92,839.48
  6. Step 6: Final answer
    x = 78,697.28

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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.