Home / 42,081.13-63,110.85-12,492.28

Finding the Fourth Proportional to 42,081.13, 63,110.85 and 12,492.28

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Solution

The fourth proportional to 42,081.13, 63,110.85 and 12,492.28 is: 18,735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,081.13 : 63,110.85 = 12,492.28 : x
  2. Step 2: Convert to fraction form
    42,081.13/63,110.85 = 12,492.28/x
  3. Step 3: Cross multiply
    42,081.13x = 63,110.85 × 12,492.28
  4. Step 4: Simplify right side
    42,081.13x = 788,398,409.24
  5. Step 5: Solve for x
    x = 788,398,409.24/42,081.13
  6. Step 6: Final answer
    x = 18,735.20

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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.