Home / 51,121.13-76,681.69-23,419.13

Finding the Fourth Proportional to 51,121.13, 76,681.69 and 23,419.13

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Solution

The fourth proportional to 51,121.13, 76,681.69 and 23,419.13 is: 35,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,121.13 : 76,681.69 = 23,419.13 : x
  2. Step 2: Convert to fraction form
    51,121.13/76,681.69 = 23,419.13/x
  3. Step 3: Cross multiply
    51,121.13x = 76,681.69 × 23,419.13
  4. Step 4: Simplify right side
    51,121.13x = 1,795,818,024.77
  5. Step 5: Solve for x
    x = 1,795,818,024.77/51,121.13
  6. Step 6: Final answer
    x = 35,128.69

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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.