Home / 88,920.17-122,709.70-53,131.13

Finding the Fourth Proportional to 88,920.17, 122,709.70 and 53,131.13

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Solution

The fourth proportional to 88,920.17, 122,709.70 and 53,131.13 is: 73,320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,920.17 : 122,709.70 = 53,131.13 : x
  2. Step 2: Convert to fraction form
    88,920.17/122,709.70 = 53,131.13/x
  3. Step 3: Cross multiply
    88,920.17x = 122,709.70 × 53,131.13
  4. Step 4: Simplify right side
    88,920.17x = 6,519,705,022.96
  5. Step 5: Solve for x
    x = 6,519,705,022.96/88,920.17
  6. Step 6: Final answer
    x = 73,320.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.