Home / 98,271.78-135,614.41-55,830.34

Finding the Fourth Proportional to 98,271.78, 135,614.41 and 55,830.34

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Solution

The fourth proportional to 98,271.78, 135,614.41 and 55,830.34 is: 77,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,271.78 : 135,614.41 = 55,830.34 : x
  2. Step 2: Convert to fraction form
    98,271.78/135,614.41 = 55,830.34/x
  3. Step 3: Cross multiply
    98,271.78x = 135,614.41 × 55,830.34
  4. Step 4: Simplify right side
    98,271.78x = 7,571,398,619.20
  5. Step 5: Solve for x
    x = 7,571,398,619.20/98,271.78
  6. Step 6: Final answer
    x = 77,045.50

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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.