Home / 42,505.36-63,736.08-19,111.84

Finding the Fourth Proportional to 42,505.36, 63,736.08 and 19,111.84

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Solution

The fourth proportional to 42,505.36, 63,736.08 and 19,111.84 is: 28,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,505.36 : 63,736.08 = 19,111.84 : x
  2. Step 2: Convert to fraction form
    42,505.36/63,736.08 = 19,111.84/x
  3. Step 3: Cross multiply
    42,505.36x = 63,736.08 × 19,111.84
  4. Step 4: Simplify right side
    42,505.36x = 1,218,113,763.19
  5. Step 5: Solve for x
    x = 1,218,113,763.19/42,505.36
  6. Step 6: Final answer
    x = 28,657.89

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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.