Home / 42,110.88-63,166.28-12,528.65

Finding the Fourth Proportional to 42,110.88, 63,166.28 and 12,528.65

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Solution

The fourth proportional to 42,110.88, 63,166.28 and 12,528.65 is: 18,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,110.88 : 63,166.28 = 12,528.65 : x
  2. Step 2: Convert to fraction form
    42,110.88/63,166.28 = 12,528.65/x
  3. Step 3: Cross multiply
    42,110.88x = 63,166.28 × 12,528.65
  4. Step 4: Simplify right side
    42,110.88x = 791,387,835.45
  5. Step 5: Solve for x
    x = 791,387,835.45/42,110.88
  6. Step 6: Final answer
    x = 18,792.95

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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.