Home / 42,736.28-64,053.21-19,909.35

Finding the Fourth Proportional to 42,736.28, 64,053.21 and 19,909.35

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Solution

The fourth proportional to 42,736.28, 64,053.21 and 19,909.35 is: 29,840.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,736.28 : 64,053.21 = 19,909.35 : x
  2. Step 2: Convert to fraction form
    42,736.28/64,053.21 = 19,909.35/x
  3. Step 3: Cross multiply
    42,736.28x = 64,053.21 × 19,909.35
  4. Step 4: Simplify right side
    42,736.28x = 1,275,257,776.51
  5. Step 5: Solve for x
    x = 1,275,257,776.51/42,736.28
  6. Step 6: Final answer
    x = 29,840.17

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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.