Home / 78,853.14-108,801.09-45,312.66

Finding the Fourth Proportional to 78,853.14, 108,801.09 and 45,312.66

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Solution

The fourth proportional to 78,853.14, 108,801.09 and 45,312.66 is: 62,522.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,853.14 : 108,801.09 = 45,312.66 : x
  2. Step 2: Convert to fraction form
    78,853.14/108,801.09 = 45,312.66/x
  3. Step 3: Cross multiply
    78,853.14x = 108,801.09 × 45,312.66
  4. Step 4: Simplify right side
    78,853.14x = 4,930,066,798.80
  5. Step 5: Solve for x
    x = 4,930,066,798.80/78,853.14
  6. Step 6: Final answer
    x = 62,522.14

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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.