Home / 73,685.08-110,540.99-42,130.72

Finding the Fourth Proportional to 73,685.08, 110,540.99 and 42,130.72

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Solution

The fourth proportional to 73,685.08, 110,540.99 and 42,130.72 is: 63,203.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,685.08 : 110,540.99 = 42,130.72 : x
  2. Step 2: Convert to fraction form
    73,685.08/110,540.99 = 42,130.72/x
  3. Step 3: Cross multiply
    73,685.08x = 110,540.99 × 42,130.72
  4. Step 4: Simplify right side
    73,685.08x = 4,657,171,498.21
  5. Step 5: Solve for x
    x = 4,657,171,498.21/73,685.08
  6. Step 6: Final answer
    x = 63,203.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.