Home / 42,421.50-63,184.16-40,201.02

Finding the Fourth Proportional to 42,421.50, 63,184.16 and 40,201.02

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Solution

The fourth proportional to 42,421.50, 63,184.16 and 40,201.02 is: 59,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,421.50 : 63,184.16 = 40,201.02 : x
  2. Step 2: Convert to fraction form
    42,421.50/63,184.16 = 40,201.02/x
  3. Step 3: Cross multiply
    42,421.50x = 63,184.16 × 40,201.02
  4. Step 4: Simplify right side
    42,421.50x = 2,540,067,478.84
  5. Step 5: Solve for x
    x = 2,540,067,478.84/42,421.50
  6. Step 6: Final answer
    x = 59,876.89

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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.