Home / 77,962.42-116,943.56-18,798.06

Finding the Fourth Proportional to 77,962.42, 116,943.56 and 18,798.06

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Solution

The fourth proportional to 77,962.42, 116,943.56 and 18,798.06 is: 28,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,962.42 : 116,943.56 = 18,798.06 : x
  2. Step 2: Convert to fraction form
    77,962.42/116,943.56 = 18,798.06/x
  3. Step 3: Cross multiply
    77,962.42x = 116,943.56 × 18,798.06
  4. Step 4: Simplify right side
    77,962.42x = 2,198,311,920.47
  5. Step 5: Solve for x
    x = 2,198,311,920.47/77,962.42
  6. Step 6: Final answer
    x = 28,197.07

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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.