Home / 72,932.05-100,664.95-47,501.78

Finding the Fourth Proportional to 72,932.05, 100,664.95 and 47,501.78

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Solution

The fourth proportional to 72,932.05, 100,664.95 and 47,501.78 is: 65,564.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,932.05 : 100,664.95 = 47,501.78 : x
  2. Step 2: Convert to fraction form
    72,932.05/100,664.95 = 47,501.78/x
  3. Step 3: Cross multiply
    72,932.05x = 100,664.95 × 47,501.78
  4. Step 4: Simplify right side
    72,932.05x = 4,781,764,308.61
  5. Step 5: Solve for x
    x = 4,781,764,308.61/72,932.05
  6. Step 6: Final answer
    x = 65,564.65

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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.