Home / 72,260.56-108,320.36-30,152.76

Finding the Fourth Proportional to 72,260.56, 108,320.36 and 30,152.76

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Solution

The fourth proportional to 72,260.56, 108,320.36 and 30,152.76 is: 45,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,260.56 : 108,320.36 = 30,152.76 : x
  2. Step 2: Convert to fraction form
    72,260.56/108,320.36 = 30,152.76/x
  3. Step 3: Cross multiply
    72,260.56x = 108,320.36 × 30,152.76
  4. Step 4: Simplify right side
    72,260.56x = 3,266,157,818.19
  5. Step 5: Solve for x
    x = 3,266,157,818.19/72,260.56
  6. Step 6: Final answer
    x = 45,199.73

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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.