Home / 86,345.18-119,158.39-48,107.31

Finding the Fourth Proportional to 86,345.18, 119,158.39 and 48,107.31

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Solution

The fourth proportional to 86,345.18, 119,158.39 and 48,107.31 is: 66,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,345.18 : 119,158.39 = 48,107.31 : x
  2. Step 2: Convert to fraction form
    86,345.18/119,158.39 = 48,107.31/x
  3. Step 3: Cross multiply
    86,345.18x = 119,158.39 × 48,107.31
  4. Step 4: Simplify right side
    86,345.18x = 5,732,389,606.83
  5. Step 5: Solve for x
    x = 5,732,389,606.83/86,345.18
  6. Step 6: Final answer
    x = 66,389.23

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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.