Home / 86,632.38-129,800.70-47,118.96

Finding the Fourth Proportional to 86,632.38, 129,800.70 and 47,118.96

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Solution

The fourth proportional to 86,632.38, 129,800.70 and 47,118.96 is: 70,598.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,632.38 : 129,800.70 = 47,118.96 : x
  2. Step 2: Convert to fraction form
    86,632.38/129,800.70 = 47,118.96/x
  3. Step 3: Cross multiply
    86,632.38x = 129,800.70 × 47,118.96
  4. Step 4: Simplify right side
    86,632.38x = 6,116,073,991.27
  5. Step 5: Solve for x
    x = 6,116,073,991.27/86,632.38
  6. Step 6: Final answer
    x = 70,598.01

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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.