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Finding the Fourth Proportional to 65,852.60, 98,785.38 and 21,477.56

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Solution

The fourth proportional to 65,852.60, 98,785.38 and 21,477.56 is: 32,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,852.60 : 98,785.38 = 21,477.56 : x
  2. Step 2: Convert to fraction form
    65,852.60/98,785.38 = 21,477.56/x
  3. Step 3: Cross multiply
    65,852.60x = 98,785.38 × 21,477.56
  4. Step 4: Simplify right side
    65,852.60x = 2,121,668,926.07
  5. Step 5: Solve for x
    x = 2,121,668,926.07/65,852.60
  6. Step 6: Final answer
    x = 32,218.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.