Home / 87,345.48-120,541.03-49,117.06

Finding the Fourth Proportional to 87,345.48, 120,541.03 and 49,117.06

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Solution

The fourth proportional to 87,345.48, 120,541.03 and 49,117.06 is: 67,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,345.48 : 120,541.03 = 49,117.06 : x
  2. Step 2: Convert to fraction form
    87,345.48/120,541.03 = 49,117.06/x
  3. Step 3: Cross multiply
    87,345.48x = 120,541.03 × 49,117.06
  4. Step 4: Simplify right side
    87,345.48x = 5,920,620,950.85
  5. Step 5: Solve for x
    x = 5,920,620,950.85/87,345.48
  6. Step 6: Final answer
    x = 67,783.94

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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.