Home / 60,931.39-91,363.13-18,799.51

Finding the Fourth Proportional to 60,931.39, 91,363.13 and 18,799.51

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Solution

The fourth proportional to 60,931.39, 91,363.13 and 18,799.51 is: 28,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,931.39 : 91,363.13 = 18,799.51 : x
  2. Step 2: Convert to fraction form
    60,931.39/91,363.13 = 18,799.51/x
  3. Step 3: Cross multiply
    60,931.39x = 91,363.13 × 18,799.51
  4. Step 4: Simplify right side
    60,931.39x = 1,717,581,982.07
  5. Step 5: Solve for x
    x = 1,717,581,982.07/60,931.39
  6. Step 6: Final answer
    x = 28,188.79

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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.