Home / 86,881.16-119,901.94-49,155.40

Finding the Fourth Proportional to 86,881.16, 119,901.94 and 49,155.40

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Solution

The fourth proportional to 86,881.16, 119,901.94 and 49,155.40 is: 67,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,881.16 : 119,901.94 = 49,155.40 : x
  2. Step 2: Convert to fraction form
    86,881.16/119,901.94 = 49,155.40/x
  3. Step 3: Cross multiply
    86,881.16x = 119,901.94 × 49,155.40
  4. Step 4: Simplify right side
    86,881.16x = 5,893,827,821.48
  5. Step 5: Solve for x
    x = 5,893,827,821.48/86,881.16
  6. Step 6: Final answer
    x = 67,837.81

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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.