Home / 99,521.36-149,258.80-28,442.04

Finding the Fourth Proportional to 99,521.36, 149,258.80 and 28,442.04

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Solution

The fourth proportional to 99,521.36, 149,258.80 and 28,442.04 is: 42,656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,521.36 : 149,258.80 = 28,442.04 : x
  2. Step 2: Convert to fraction form
    99,521.36/149,258.80 = 28,442.04/x
  3. Step 3: Cross multiply
    99,521.36x = 149,258.80 × 28,442.04
  4. Step 4: Simplify right side
    99,521.36x = 4,245,224,235.78
  5. Step 5: Solve for x
    x = 4,245,224,235.78/99,521.36
  6. Step 6: Final answer
    x = 42,656.41

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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.