Home / 145,055.68-217,578.94-39,873.76

Finding the Fourth Proportional to 145,055.68, 217,578.94 and 39,873.76

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Solution

The fourth proportional to 145,055.68, 217,578.94 and 39,873.76 is: 59,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,055.68 : 217,578.94 = 39,873.76 : x
  2. Step 2: Convert to fraction form
    145,055.68/217,578.94 = 39,873.76/x
  3. Step 3: Cross multiply
    145,055.68x = 217,578.94 × 39,873.76
  4. Step 4: Simplify right side
    145,055.68x = 8,675,690,434.61
  5. Step 5: Solve for x
    x = 8,675,690,434.61/145,055.68
  6. Step 6: Final answer
    x = 59,809.38

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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.