Home / 51,429.03-77,143.74-18,130.92

Finding the Fourth Proportional to 51,429.03, 77,143.74 and 18,130.92

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Solution

The fourth proportional to 51,429.03, 77,143.74 and 18,130.92 is: 27,196.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,429.03 : 77,143.74 = 18,130.92 : x
  2. Step 2: Convert to fraction form
    51,429.03/77,143.74 = 18,130.92/x
  3. Step 3: Cross multiply
    51,429.03x = 77,143.74 × 18,130.92
  4. Step 4: Simplify right side
    51,429.03x = 1,398,686,978.44
  5. Step 5: Solve for x
    x = 1,398,686,978.44/51,429.03
  6. Step 6: Final answer
    x = 27,196.45

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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.