Home / 55,012.46-75,985.68-42,418.48

Finding the Fourth Proportional to 55,012.46, 75,985.68 and 42,418.48

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Solution

The fourth proportional to 55,012.46, 75,985.68 and 42,418.48 is: 58,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012.46 : 75,985.68 = 42,418.48 : x
  2. Step 2: Convert to fraction form
    55,012.46/75,985.68 = 42,418.48/x
  3. Step 3: Cross multiply
    55,012.46x = 75,985.68 × 42,418.48
  4. Step 4: Simplify right side
    55,012.46x = 3,223,197,047.37
  5. Step 5: Solve for x
    x = 3,223,197,047.37/55,012.46
  6. Step 6: Final answer
    x = 58,590.31

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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.