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Finding the Fourth Proportional to 57,498.80, 86,220.88 and 20,054.32

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Solution

The fourth proportional to 57,498.80, 86,220.88 and 20,054.32 is: 30,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,498.80 : 86,220.88 = 20,054.32 : x
  2. Step 2: Convert to fraction form
    57,498.80/86,220.88 = 20,054.32/x
  3. Step 3: Cross multiply
    57,498.80x = 86,220.88 × 20,054.32
  4. Step 4: Simplify right side
    57,498.80x = 1,729,100,852.51
  5. Step 5: Solve for x
    x = 1,729,100,852.51/57,498.80
  6. Step 6: Final answer
    x = 30,071.95

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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.