Home / 74,565.85-111,852.24-21,261.45

Finding the Fourth Proportional to 74,565.85, 111,852.24 and 21,261.45

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Solution

The fourth proportional to 74,565.85, 111,852.24 and 21,261.45 is: 31,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,565.85 : 111,852.24 = 21,261.45 : x
  2. Step 2: Convert to fraction form
    74,565.85/111,852.24 = 21,261.45/x
  3. Step 3: Cross multiply
    74,565.85x = 111,852.24 × 21,261.45
  4. Step 4: Simplify right side
    74,565.85x = 2,378,140,808.15
  5. Step 5: Solve for x
    x = 2,378,140,808.15/74,565.85
  6. Step 6: Final answer
    x = 31,893.16

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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.