Home / 87,345.98-120,541.73-49,117.56

Finding the Fourth Proportional to 87,345.98, 120,541.73 and 49,117.56

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Solution

The fourth proportional to 87,345.98, 120,541.73 and 49,117.56 is: 67,784.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,345.98 : 120,541.73 = 49,117.56 : x
  2. Step 2: Convert to fraction form
    87,345.98/120,541.73 = 49,117.56/x
  3. Step 3: Cross multiply
    87,345.98x = 120,541.73 × 49,117.56
  4. Step 4: Simplify right side
    87,345.98x = 5,920,715,410.19
  5. Step 5: Solve for x
    x = 5,920,715,410.19/87,345.98
  6. Step 6: Final answer
    x = 67,784.64

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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.