Home / 52,535.20-78,831.60-21,392.80

Finding the Fourth Proportional to 52,535.20, 78,831.60 and 21,392.80

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Solution

The fourth proportional to 52,535.20, 78,831.60 and 21,392.80 is: 32,100.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,535.20 : 78,831.60 = 21,392.80 : x
  2. Step 2: Convert to fraction form
    52,535.20/78,831.60 = 21,392.80/x
  3. Step 3: Cross multiply
    52,535.20x = 78,831.60 × 21,392.80
  4. Step 4: Simplify right side
    52,535.20x = 1,686,428,652.48
  5. Step 5: Solve for x
    x = 1,686,428,652.48/52,535.20
  6. Step 6: Final answer
    x = 32,100.93

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1.5x scale

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.