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Finding the Fourth Proportional to 85,496.58, 128,264.85 and 26,330.94

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Solution

The fourth proportional to 85,496.58, 128,264.85 and 26,330.94 is: 39,502.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,496.58 : 128,264.85 = 26,330.94 : x
  2. Step 2: Convert to fraction form
    85,496.58/128,264.85 = 26,330.94/x
  3. Step 3: Cross multiply
    85,496.58x = 128,264.85 × 26,330.94
  4. Step 4: Simplify right side
    85,496.58x = 3,377,334,069.46
  5. Step 5: Solve for x
    x = 3,377,334,069.46/85,496.58
  6. Step 6: Final answer
    x = 39,502.56

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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.