Home / 42,320.80-63,483.81-11,156.05

Finding the Fourth Proportional to 42,320.80, 63,483.81 and 11,156.05

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Solution

The fourth proportional to 42,320.80, 63,483.81 and 11,156.05 is: 16,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,320.80 : 63,483.81 = 11,156.05 : x
  2. Step 2: Convert to fraction form
    42,320.80/63,483.81 = 11,156.05/x
  3. Step 3: Cross multiply
    42,320.80x = 63,483.81 × 11,156.05
  4. Step 4: Simplify right side
    42,320.80x = 708,228,558.55
  5. Step 5: Solve for x
    x = 708,228,558.55/42,320.80
  6. Step 6: Final answer
    x = 16,734.76

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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.