Home / 52,799.11-72,859.71-28,921.63

Finding the Fourth Proportional to 52,799.11, 72,859.71 and 28,921.63

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Solution

The fourth proportional to 52,799.11, 72,859.71 and 28,921.63 is: 39,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,799.11 : 72,859.71 = 28,921.63 : x
  2. Step 2: Convert to fraction form
    52,799.11/72,859.71 = 28,921.63/x
  3. Step 3: Cross multiply
    52,799.11x = 72,859.71 × 28,921.63
  4. Step 4: Simplify right side
    52,799.11x = 2,107,221,574.53
  5. Step 5: Solve for x
    x = 2,107,221,574.53/52,799.11
  6. Step 6: Final answer
    x = 39,910.17

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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.