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Finding the Fourth Proportional to 65,566.22, 90,460.24 and 38,717.68

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Solution

The fourth proportional to 65,566.22, 90,460.24 and 38,717.68 is: 53,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,566.22 : 90,460.24 = 38,717.68 : x
  2. Step 2: Convert to fraction form
    65,566.22/90,460.24 = 38,717.68/x
  3. Step 3: Cross multiply
    65,566.22x = 90,460.24 × 38,717.68
  4. Step 4: Simplify right side
    65,566.22x = 3,502,410,625.04
  5. Step 5: Solve for x
    x = 3,502,410,625.04/65,566.22
  6. Step 6: Final answer
    x = 53,417.91

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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.