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Finding the Fourth Proportional to 85,332.84, 128,015.74 and 32,738.23

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Solution

The fourth proportional to 85,332.84, 128,015.74 and 32,738.23 is: 49,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,332.84 : 128,015.74 = 32,738.23 : x
  2. Step 2: Convert to fraction form
    85,332.84/128,015.74 = 32,738.23/x
  3. Step 3: Cross multiply
    85,332.84x = 128,015.74 × 32,738.23
  4. Step 4: Simplify right side
    85,332.84x = 4,191,008,220.59
  5. Step 5: Solve for x
    x = 4,191,008,220.59/85,332.84
  6. Step 6: Final answer
    x = 49,113.66

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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.