Home / 70,146.81-105,178.23-32,715.36

Finding the Fourth Proportional to 70,146.81, 105,178.23 and 32,715.36

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Solution

The fourth proportional to 70,146.81, 105,178.23 and 32,715.36 is: 49,053.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,146.81 : 105,178.23 = 32,715.36 : x
  2. Step 2: Convert to fraction form
    70,146.81/105,178.23 = 32,715.36/x
  3. Step 3: Cross multiply
    70,146.81x = 105,178.23 × 32,715.36
  4. Step 4: Simplify right side
    70,146.81x = 3,440,943,658.61
  5. Step 5: Solve for x
    x = 3,440,943,658.61/70,146.81
  6. Step 6: Final answer
    x = 49,053.46

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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.