Home / 63,135.75-87,048.54-40,437.42

Finding the Fourth Proportional to 63,135.75, 87,048.54 and 40,437.42

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Solution

The fourth proportional to 63,135.75, 87,048.54 and 40,437.42 is: 55,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,135.75 : 87,048.54 = 40,437.42 : x
  2. Step 2: Convert to fraction form
    63,135.75/87,048.54 = 40,437.42/x
  3. Step 3: Cross multiply
    63,135.75x = 87,048.54 × 40,437.42
  4. Step 4: Simplify right side
    63,135.75x = 3,520,018,372.37
  5. Step 5: Solve for x
    x = 3,520,018,372.37/63,135.75
  6. Step 6: Final answer
    x = 55,753.17

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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.