Home / 70,238.66-105,355.18-38,711.22

Finding the Fourth Proportional to 70,238.66, 105,355.18 and 38,711.22

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Solution

The fourth proportional to 70,238.66, 105,355.18 and 38,711.22 is: 58,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,238.66 : 105,355.18 = 38,711.22 : x
  2. Step 2: Convert to fraction form
    70,238.66/105,355.18 = 38,711.22/x
  3. Step 3: Cross multiply
    70,238.66x = 105,355.18 × 38,711.22
  4. Step 4: Simplify right side
    70,238.66x = 4,078,427,551.12
  5. Step 5: Solve for x
    x = 4,078,427,551.12/70,238.66
  6. Step 6: Final answer
    x = 58,065.28

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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.