Home / 42,977.79-64,440.18-14,891.31

Finding the Fourth Proportional to 42,977.79, 64,440.18 and 14,891.31

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Solution

The fourth proportional to 42,977.79, 64,440.18 and 14,891.31 is: 22,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,977.79 : 64,440.18 = 14,891.31 : x
  2. Step 2: Convert to fraction form
    42,977.79/64,440.18 = 14,891.31/x
  3. Step 3: Cross multiply
    42,977.79x = 64,440.18 × 14,891.31
  4. Step 4: Simplify right side
    42,977.79x = 959,598,696.84
  5. Step 5: Solve for x
    x = 959,598,696.84/42,977.79
  6. Step 6: Final answer
    x = 22,327.78

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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.