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Finding the Fourth Proportional to 75,365.82, 112,969.72 and 25,428.71

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Solution

The fourth proportional to 75,365.82, 112,969.72 and 25,428.71 is: 38,116.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,365.82 : 112,969.72 = 25,428.71 : x
  2. Step 2: Convert to fraction form
    75,365.82/112,969.72 = 25,428.71/x
  3. Step 3: Cross multiply
    75,365.82x = 112,969.72 × 25,428.71
  4. Step 4: Simplify right side
    75,365.82x = 2,872,674,248.66
  5. Step 5: Solve for x
    x = 2,872,674,248.66/75,365.82
  6. Step 6: Final answer
    x = 38,116.41

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1.5x scale

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.