Home / 70,619.28-97,455.06-38,787.90

Finding the Fourth Proportional to 70,619.28, 97,455.06 and 38,787.90

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Solution

The fourth proportional to 70,619.28, 97,455.06 and 38,787.90 is: 53,527.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,619.28 : 97,455.06 = 38,787.90 : x
  2. Step 2: Convert to fraction form
    70,619.28/97,455.06 = 38,787.90/x
  3. Step 3: Cross multiply
    70,619.28x = 97,455.06 × 38,787.90
  4. Step 4: Simplify right side
    70,619.28x = 3,780,077,121.77
  5. Step 5: Solve for x
    x = 3,780,077,121.77/70,619.28
  6. Step 6: Final answer
    x = 53,527.55

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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.