Home / 64,907.12-97,370.22-20,523.80

Finding the Fourth Proportional to 64,907.12, 97,370.22 and 20,523.80

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Solution

The fourth proportional to 64,907.12, 97,370.22 and 20,523.80 is: 30,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,907.12 : 97,370.22 = 20,523.80 : x
  2. Step 2: Convert to fraction form
    64,907.12/97,370.22 = 20,523.80/x
  3. Step 3: Cross multiply
    64,907.12x = 97,370.22 × 20,523.80
  4. Step 4: Simplify right side
    64,907.12x = 1,998,406,921.24
  5. Step 5: Solve for x
    x = 1,998,406,921.24/64,907.12
  6. Step 6: Final answer
    x = 30,788.72

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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.