Home / 42,777.09-64,166.76-20,282.49

Finding the Fourth Proportional to 42,777.09, 64,166.76 and 20,282.49

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Solution

The fourth proportional to 42,777.09, 64,166.76 and 20,282.49 is: 30,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,777.09 : 64,166.76 = 20,282.49 : x
  2. Step 2: Convert to fraction form
    42,777.09/64,166.76 = 20,282.49/x
  3. Step 3: Cross multiply
    42,777.09x = 64,166.76 × 20,282.49
  4. Step 4: Simplify right side
    42,777.09x = 1,301,461,668.03
  5. Step 5: Solve for x
    x = 1,301,461,668.03/42,777.09
  6. Step 6: Final answer
    x = 30,424.27

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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.