Home / 88,099.75-121,678.58-58,019.53

Finding the Fourth Proportional to 88,099.75, 121,678.58 and 58,019.53

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Solution

The fourth proportional to 88,099.75, 121,678.58 and 58,019.53 is: 80,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,099.75 : 121,678.58 = 58,019.53 : x
  2. Step 2: Convert to fraction form
    88,099.75/121,678.58 = 58,019.53/x
  3. Step 3: Cross multiply
    88,099.75x = 121,678.58 × 58,019.53
  4. Step 4: Simplify right side
    88,099.75x = 7,059,734,022.67
  5. Step 5: Solve for x
    x = 7,059,734,022.67/88,099.75
  6. Step 6: Final answer
    x = 80,133.42

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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.