Home / 64,830.07-97,245.12-20,460.28

Finding the Fourth Proportional to 64,830.07, 97,245.12 and 20,460.28

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Solution

The fourth proportional to 64,830.07, 97,245.12 and 20,460.28 is: 30,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,830.07 : 97,245.12 = 20,460.28 : x
  2. Step 2: Convert to fraction form
    64,830.07/97,245.12 = 20,460.28/x
  3. Step 3: Cross multiply
    64,830.07x = 97,245.12 × 20,460.28
  4. Step 4: Simplify right side
    64,830.07x = 1,989,662,383.83
  5. Step 5: Solve for x
    x = 1,989,662,383.83/64,830.07
  6. Step 6: Final answer
    x = 30,690.42

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Similar ratio
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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.