Home / 85,467.84-128,216.34-26,302.20

Finding the Fourth Proportional to 85,467.84, 128,216.34 and 26,302.20

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Solution

The fourth proportional to 85,467.84, 128,216.34 and 26,302.20 is: 39,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,467.84 : 128,216.34 = 26,302.20 : x
  2. Step 2: Convert to fraction form
    85,467.84/128,216.34 = 26,302.20/x
  3. Step 3: Cross multiply
    85,467.84x = 128,216.34 × 26,302.20
  4. Step 4: Simplify right side
    85,467.84x = 3,372,371,817.95
  5. Step 5: Solve for x
    x = 3,372,371,817.95/85,467.84
  6. Step 6: Final answer
    x = 39,457.79

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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.