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Finding the Fourth Proportional to 65,668.68, 90,623.88 and 37,377

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Solution

The fourth proportional to 65,668.68, 90,623.88 and 37,377 is: 51,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,668.68 : 90,623.88 = 37,377 : x
  2. Step 2: Convert to fraction form
    65,668.68/90,623.88 = 37,377/x
  3. Step 3: Cross multiply
    65,668.68x = 90,623.88 × 37,377
  4. Step 4: Simplify right side
    65,668.68x = 3,387,248,762.76
  5. Step 5: Solve for x
    x = 3,387,248,762.76/65,668.68
  6. Step 6: Final answer
    x = 51,580.89

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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.