Home / 77,981.04-116,970.96-18,816.48

Finding the Fourth Proportional to 77,981.04, 116,970.96 and 18,816.48

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Solution

The fourth proportional to 77,981.04, 116,970.96 and 18,816.48 is: 28,224.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,981.04 : 116,970.96 = 18,816.48 : x
  2. Step 2: Convert to fraction form
    77,981.04/116,970.96 = 18,816.48/x
  3. Step 3: Cross multiply
    77,981.04x = 116,970.96 × 18,816.48
  4. Step 4: Simplify right side
    77,981.04x = 2,200,981,729.42
  5. Step 5: Solve for x
    x = 2,200,981,729.42/77,981.04
  6. Step 6: Final answer
    x = 28,224.58

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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.