Home / 43,434.28-59,908.41-39,860.78

Finding the Fourth Proportional to 43,434.28, 59,908.41 and 39,860.78

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Solution

The fourth proportional to 43,434.28, 59,908.41 and 39,860.78 is: 54,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,434.28 : 59,908.41 = 39,860.78 : x
  2. Step 2: Convert to fraction form
    43,434.28/59,908.41 = 39,860.78/x
  3. Step 3: Cross multiply
    43,434.28x = 59,908.41 × 39,860.78
  4. Step 4: Simplify right side
    43,434.28x = 2,387,996,128.82
  5. Step 5: Solve for x
    x = 2,387,996,128.82/43,434.28
  6. Step 6: Final answer
    x = 54,979.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.