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Finding the Fourth Proportional to 65,218.43, 90,001.77 and 36,929.63

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Solution

The fourth proportional to 65,218.43, 90,001.77 and 36,929.63 is: 50,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,218.43 : 90,001.77 = 36,929.63 : x
  2. Step 2: Convert to fraction form
    65,218.43/90,001.77 = 36,929.63/x
  3. Step 3: Cross multiply
    65,218.43x = 90,001.77 × 36,929.63
  4. Step 4: Simplify right side
    65,218.43x = 3,323,732,065.45
  5. Step 5: Solve for x
    x = 3,323,732,065.45/65,218.43
  6. Step 6: Final answer
    x = 50,963.08

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1.5x scale

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.