Home / 42,838.80-64,257.99-28,577.13

Finding the Fourth Proportional to 42,838.80, 64,257.99 and 28,577.13

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Solution

The fourth proportional to 42,838.80, 64,257.99 and 28,577.13 is: 42,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,838.80 : 64,257.99 = 28,577.13 : x
  2. Step 2: Convert to fraction form
    42,838.80/64,257.99 = 28,577.13/x
  3. Step 3: Cross multiply
    42,838.80x = 64,257.99 × 28,577.13
  4. Step 4: Simplify right side
    42,838.80x = 1,836,308,933.77
  5. Step 5: Solve for x
    x = 1,836,308,933.77/42,838.80
  6. Step 6: Final answer
    x = 42,865.55

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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.