Home / 70,973.28-97,943.40-39,141.72

Finding the Fourth Proportional to 70,973.28, 97,943.40 and 39,141.72

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Solution

The fourth proportional to 70,973.28, 97,943.40 and 39,141.72 is: 54,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,973.28 : 97,943.40 = 39,141.72 : x
  2. Step 2: Convert to fraction form
    70,973.28/97,943.40 = 39,141.72/x
  3. Step 3: Cross multiply
    70,973.28x = 97,943.40 × 39,141.72
  4. Step 4: Simplify right side
    70,973.28x = 3,833,673,138.65
  5. Step 5: Solve for x
    x = 3,833,673,138.65/70,973.28
  6. Step 6: Final answer
    x = 54,015.72

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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.