Home / 72,799.75-100,473.38-47,663.83

Finding the Fourth Proportional to 72,799.75, 100,473.38 and 47,663.83

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Solution

The fourth proportional to 72,799.75, 100,473.38 and 47,663.83 is: 65,782.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,799.75 : 100,473.38 = 47,663.83 : x
  2. Step 2: Convert to fraction form
    72,799.75/100,473.38 = 47,663.83/x
  3. Step 3: Cross multiply
    72,799.75x = 100,473.38 × 47,663.83
  4. Step 4: Simplify right side
    72,799.75x = 4,788,945,865.53
  5. Step 5: Solve for x
    x = 4,788,945,865.53/72,799.75
  6. Step 6: Final answer
    x = 65,782.45

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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.