Home / 85,738.08-128,625.48-26,572.44

Finding the Fourth Proportional to 85,738.08, 128,625.48 and 26,572.44

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Solution

The fourth proportional to 85,738.08, 128,625.48 and 26,572.44 is: 39,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,738.08 : 128,625.48 = 26,572.44 : x
  2. Step 2: Convert to fraction form
    85,738.08/128,625.48 = 26,572.44/x
  3. Step 3: Cross multiply
    85,738.08x = 128,625.48 × 26,572.44
  4. Step 4: Simplify right side
    85,738.08x = 3,417,892,849.77
  5. Step 5: Solve for x
    x = 3,417,892,849.77/85,738.08
  6. Step 6: Final answer
    x = 39,864.35

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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.