Home / 55,587.10-76,658.37-51,458.80

Finding the Fourth Proportional to 55,587.10, 76,658.37 and 51,458.80

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Solution

The fourth proportional to 55,587.10, 76,658.37 and 51,458.80 is: 70,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,587.10 : 76,658.37 = 51,458.80 : x
  2. Step 2: Convert to fraction form
    55,587.10/76,658.37 = 51,458.80/x
  3. Step 3: Cross multiply
    55,587.10x = 76,658.37 × 51,458.80
  4. Step 4: Simplify right side
    55,587.10x = 3,944,747,730.16
  5. Step 5: Solve for x
    x = 3,944,747,730.16/55,587.10
  6. Step 6: Final answer
    x = 70,965.17

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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.