Home / 52,831.50-79,218.08-21,688.62

Finding the Fourth Proportional to 52,831.50, 79,218.08 and 21,688.62

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Solution

The fourth proportional to 52,831.50, 79,218.08 and 21,688.62 is: 32,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,831.50 : 79,218.08 = 21,688.62 : x
  2. Step 2: Convert to fraction form
    52,831.50/79,218.08 = 21,688.62/x
  3. Step 3: Cross multiply
    52,831.50x = 79,218.08 × 21,688.62
  4. Step 4: Simplify right side
    52,831.50x = 1,718,130,834.25
  5. Step 5: Solve for x
    x = 1,718,130,834.25/52,831.50
  6. Step 6: Final answer
    x = 32,520.96

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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.