Home / 72,285.28-108,381.65-34,770.63

Finding the Fourth Proportional to 72,285.28, 108,381.65 and 34,770.63

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Solution

The fourth proportional to 72,285.28, 108,381.65 and 34,770.63 is: 52,133.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,285.28 : 108,381.65 = 34,770.63 : x
  2. Step 2: Convert to fraction form
    72,285.28/108,381.65 = 34,770.63/x
  3. Step 3: Cross multiply
    72,285.28x = 108,381.65 × 34,770.63
  4. Step 4: Simplify right side
    72,285.28x = 3,768,498,483.52
  5. Step 5: Solve for x
    x = 3,768,498,483.52/72,285.28
  6. Step 6: Final answer
    x = 52,133.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.