Home / 87,641,840.75-120,949,301.40-48,482,942.36

Finding the Fourth Proportional to 87,641,840.75, 120,949,301.40 and 48,482,942.36

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Solution

The fourth proportional to 87,641,840.75, 120,949,301.40 and 48,482,942.36 is: 66,908,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641,840.75 : 120,949,301.40 = 48,482,942.36 : x
  2. Step 2: Convert to fraction form
    87,641,840.75/120,949,301.40 = 48,482,942.36/x
  3. Step 3: Cross multiply
    87,641,840.75x = 120,949,301.40 × 48,482,942.36
  4. Step 4: Simplify right side
    87,641,840.75x = 5,863,978,008,258,468
  5. Step 5: Solve for x
    x = 5,863,978,008,258,468/87,641,840.75
  6. Step 6: Final answer
    x = 66,908,430.47

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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.