Home / 72,981.48-100,624.97-60,015.45

Finding the Fourth Proportional to 72,981.48, 100,624.97 and 60,015.45

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Solution

The fourth proportional to 72,981.48, 100,624.97 and 60,015.45 is: 82,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,981.48 : 100,624.97 = 60,015.45 : x
  2. Step 2: Convert to fraction form
    72,981.48/100,624.97 = 60,015.45/x
  3. Step 3: Cross multiply
    72,981.48x = 100,624.97 × 60,015.45
  4. Step 4: Simplify right side
    72,981.48x = 6,039,053,045.58
  5. Step 5: Solve for x
    x = 6,039,053,045.58/72,981.48
  6. Step 6: Final answer
    x = 82,747.75

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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.