Home / 92,981.10-128,314.83-50,539.61

Finding the Fourth Proportional to 92,981.10, 128,314.83 and 50,539.61

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Solution

The fourth proportional to 92,981.10, 128,314.83 and 50,539.61 is: 69,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,981.10 : 128,314.83 = 50,539.61 : x
  2. Step 2: Convert to fraction form
    92,981.10/128,314.83 = 50,539.61/x
  3. Step 3: Cross multiply
    92,981.10x = 128,314.83 × 50,539.61
  4. Step 4: Simplify right side
    92,981.10x = 6,484,980,823.84
  5. Step 5: Solve for x
    x = 6,484,980,823.84/92,981.10
  6. Step 6: Final answer
    x = 69,745.15

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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.