Home / 89,428.86-123,411.42-51,188.22

Finding the Fourth Proportional to 89,428.86, 123,411.42 and 51,188.22

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Solution

The fourth proportional to 89,428.86, 123,411.42 and 51,188.22 is: 70,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,428.86 : 123,411.42 = 51,188.22 : x
  2. Step 2: Convert to fraction form
    89,428.86/123,411.42 = 51,188.22/x
  3. Step 3: Cross multiply
    89,428.86x = 123,411.42 × 51,188.22
  4. Step 4: Simplify right side
    89,428.86x = 6,317,210,917.47
  5. Step 5: Solve for x
    x = 6,317,210,917.47/89,428.86
  6. Step 6: Final answer
    x = 70,639.51

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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.