Home / 55,830.30-77,044.92-30,679.26

Finding the Fourth Proportional to 55,830.30, 77,044.92 and 30,679.26

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Solution

The fourth proportional to 55,830.30, 77,044.92 and 30,679.26 is: 42,336.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,830.30 : 77,044.92 = 30,679.26 : x
  2. Step 2: Convert to fraction form
    55,830.30/77,044.92 = 30,679.26/x
  3. Step 3: Cross multiply
    55,830.30x = 77,044.92 × 30,679.26
  4. Step 4: Simplify right side
    55,830.30x = 2,363,681,132.36
  5. Step 5: Solve for x
    x = 2,363,681,132.36/55,830.30
  6. Step 6: Final answer
    x = 42,336.89

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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.