Home / 42,423-63,186.39-40,202.52

Finding the Fourth Proportional to 42,423, 63,186.39 and 40,202.52

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Solution

The fourth proportional to 42,423, 63,186.39 and 40,202.52 is: 59,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,423 : 63,186.39 = 40,202.52 : x
  2. Step 2: Convert to fraction form
    42,423/63,186.39 = 40,202.52/x
  3. Step 3: Cross multiply
    42,423x = 63,186.39 × 40,202.52
  4. Step 4: Simplify right side
    42,423x = 2,540,252,107.70
  5. Step 5: Solve for x
    x = 2,540,252,107.70/42,423
  6. Step 6: Final answer
    x = 59,879.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.