Home / 98,442.36-135,851.40-56,003.76

Finding the Fourth Proportional to 98,442.36, 135,851.40 and 56,003.76

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Solution

The fourth proportional to 98,442.36, 135,851.40 and 56,003.76 is: 77,285.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,442.36 : 135,851.40 = 56,003.76 : x
  2. Step 2: Convert to fraction form
    98,442.36/135,851.40 = 56,003.76/x
  3. Step 3: Cross multiply
    98,442.36x = 135,851.40 × 56,003.76
  4. Step 4: Simplify right side
    98,442.36x = 7,608,189,201.26
  5. Step 5: Solve for x
    x = 7,608,189,201.26/98,442.36
  6. Step 6: Final answer
    x = 77,285.73

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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.