Home / 211,439.25-317,125.10-61,644.51

Finding the Fourth Proportional to 211,439.25, 317,125.10 and 61,644.51

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Solution

The fourth proportional to 211,439.25, 317,125.10 and 61,644.51 is: 92,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,439.25 : 317,125.10 = 61,644.51 : x
  2. Step 2: Convert to fraction form
    211,439.25/317,125.10 = 61,644.51/x
  3. Step 3: Cross multiply
    211,439.25x = 317,125.10 × 61,644.51
  4. Step 4: Simplify right side
    211,439.25x = 19,549,019,966.69
  5. Step 5: Solve for x
    x = 19,549,019,966.69/211,439.25
  6. Step 6: Final answer
    x = 92,456.91

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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.