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Finding the Fourth Proportional to 85,560.15, 128,362.10 and 32,955.51

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Solution

The fourth proportional to 85,560.15, 128,362.10 and 32,955.51 is: 49,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,560.15 : 128,362.10 = 32,955.51 : x
  2. Step 2: Convert to fraction form
    85,560.15/128,362.10 = 32,955.51/x
  3. Step 3: Cross multiply
    85,560.15x = 128,362.10 × 32,955.51
  4. Step 4: Simplify right side
    85,560.15x = 4,230,238,305.39
  5. Step 5: Solve for x
    x = 4,230,238,305.39/85,560.15
  6. Step 6: Final answer
    x = 49,441.69

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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.