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Finding the Fourth Proportional to 60,353.80, 83,238 and 45,279.91

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Solution

The fourth proportional to 60,353.80, 83,238 and 45,279.91 is: 62,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,353.80 : 83,238 = 45,279.91 : x
  2. Step 2: Convert to fraction form
    60,353.80/83,238 = 45,279.91/x
  3. Step 3: Cross multiply
    60,353.80x = 83,238 × 45,279.91
  4. Step 4: Simplify right side
    60,353.80x = 3,769,009,148.58
  5. Step 5: Solve for x
    x = 3,769,009,148.58/60,353.80
  6. Step 6: Final answer
    x = 62,448.58

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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.