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Finding the Fourth Proportional to 59,980.60, 89,917.46 and 30,383.20

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Solution

The fourth proportional to 59,980.60, 89,917.46 and 30,383.20 is: 45,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,980.60 : 89,917.46 = 30,383.20 : x
  2. Step 2: Convert to fraction form
    59,980.60/89,917.46 = 30,383.20/x
  3. Step 3: Cross multiply
    59,980.60x = 89,917.46 × 30,383.20
  4. Step 4: Simplify right side
    59,980.60x = 2,731,980,170.67
  5. Step 5: Solve for x
    x = 2,731,980,170.67/59,980.60
  6. Step 6: Final answer
    x = 45,547.73

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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.