Home / 70,972.02-106,441.63-21,040.08

Finding the Fourth Proportional to 70,972.02, 106,441.63 and 21,040.08

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Solution

The fourth proportional to 70,972.02, 106,441.63 and 21,040.08 is: 31,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,972.02 : 106,441.63 = 21,040.08 : x
  2. Step 2: Convert to fraction form
    70,972.02/106,441.63 = 21,040.08/x
  3. Step 3: Cross multiply
    70,972.02x = 106,441.63 × 21,040.08
  4. Step 4: Simplify right side
    70,972.02x = 2,239,539,958.77
  5. Step 5: Solve for x
    x = 2,239,539,958.77/70,972.02
  6. Step 6: Final answer
    x = 31,555.25

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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.