Home / 42,755.80-64,147.53-20,566.27

Finding the Fourth Proportional to 42,755.80, 64,147.53 and 20,566.27

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Solution

The fourth proportional to 42,755.80, 64,147.53 and 20,566.27 is: 30,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755.80 : 64,147.53 = 20,566.27 : x
  2. Step 2: Convert to fraction form
    42,755.80/64,147.53 = 20,566.27/x
  3. Step 3: Cross multiply
    42,755.80x = 64,147.53 × 20,566.27
  4. Step 4: Simplify right side
    42,755.80x = 1,319,275,421.81
  5. Step 5: Solve for x
    x = 1,319,275,421.81/42,755.80
  6. Step 6: Final answer
    x = 30,856.06

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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.