Home / 71,021.81-98,012.23-39,192.76

Finding the Fourth Proportional to 71,021.81, 98,012.23 and 39,192.76

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Solution

The fourth proportional to 71,021.81, 98,012.23 and 39,192.76 is: 54,087.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,021.81 : 98,012.23 = 39,192.76 : x
  2. Step 2: Convert to fraction form
    71,021.81/98,012.23 = 39,192.76/x
  3. Step 3: Cross multiply
    71,021.81x = 98,012.23 × 39,192.76
  4. Step 4: Simplify right side
    71,021.81x = 3,841,369,831.99
  5. Step 5: Solve for x
    x = 3,841,369,831.99/71,021.81
  6. Step 6: Final answer
    x = 54,087.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.